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Finding the Fourth Proportional to 10,896.66, 15,044.13 and 9,775.62

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Solution

The fourth proportional to 10,896.66, 15,044.13 and 9,775.62 is: 13,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,896.66 : 15,044.13 = 9,775.62 : x
  2. Step 2: Convert to fraction form
    10,896.66/15,044.13 = 9,775.62/x
  3. Step 3: Cross multiply
    10,896.66x = 15,044.13 × 9,775.62
  4. Step 4: Simplify right side
    10,896.66x = 147,065,698.11
  5. Step 5: Solve for x
    x = 147,065,698.11/10,896.66
  6. Step 6: Final answer
    x = 13,496.40

Related Problems

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Half scale
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Double scale
Find fourth proportional to 10,897.66, 15,045.51 and 9,776.62
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.