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Finding the Fourth Proportional to 9,248.76, 12,760.22 and 5,215.08

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Solution

The fourth proportional to 9,248.76, 12,760.22 and 5,215.08 is: 7,195.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,248.76 : 12,760.22 = 5,215.08 : x
  2. Step 2: Convert to fraction form
    9,248.76/12,760.22 = 5,215.08/x
  3. Step 3: Cross multiply
    9,248.76x = 12,760.22 × 5,215.08
  4. Step 4: Simplify right side
    9,248.76x = 66,545,568.12
  5. Step 5: Solve for x
    x = 66,545,568.12/9,248.76
  6. Step 6: Final answer
    x = 7,195.08

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Half scale
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Double scale
Find fourth proportional to 9,249.76, 12,761.60 and 5,216.08
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.