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Finding the Fourth Proportional to 15,597.20, 21,542.02 and 11,367.12

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Solution

The fourth proportional to 15,597.20, 21,542.02 and 11,367.12 is: 15,699.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,597.20 : 21,542.02 = 11,367.12 : x
  2. Step 2: Convert to fraction form
    15,597.20/21,542.02 = 11,367.12/x
  3. Step 3: Cross multiply
    15,597.20x = 21,542.02 × 11,367.12
  4. Step 4: Simplify right side
    15,597.20x = 244,870,726.38
  5. Step 5: Solve for x
    x = 244,870,726.38/15,597.20
  6. Step 6: Final answer
    x = 15,699.66

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Double scale
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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.