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Finding the Fourth Proportional to 15,799.71, 21,798.68 and 9,082.92

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Solution

The fourth proportional to 15,799.71, 21,798.68 and 9,082.92 is: 12,531.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.71 : 21,798.68 = 9,082.92 : x
  2. Step 2: Convert to fraction form
    15,799.71/21,798.68 = 9,082.92/x
  3. Step 3: Cross multiply
    15,799.71x = 21,798.68 × 9,082.92
  4. Step 4: Simplify right side
    15,799.71x = 197,995,666.55
  5. Step 5: Solve for x
    x = 197,995,666.55/15,799.71
  6. Step 6: Final answer
    x = 12,531.60

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Double scale
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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.