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Finding the Fourth Proportional to 17,775.90, 24,530.75 and 9,818.12

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Solution

The fourth proportional to 17,775.90, 24,530.75 and 9,818.12 is: 13,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.90 : 24,530.75 = 9,818.12 : x
  2. Step 2: Convert to fraction form
    17,775.90/24,530.75 = 9,818.12/x
  3. Step 3: Cross multiply
    17,775.90x = 24,530.75 × 9,818.12
  4. Step 4: Simplify right side
    17,775.90x = 240,845,847.19
  5. Step 5: Solve for x
    x = 240,845,847.19/17,775.90
  6. Step 6: Final answer
    x = 13,549.01

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Half scale
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Double scale
Find fourth proportional to 17,776.90, 24,532.13 and 9,819.12
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.