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Finding the Fourth Proportional to 26,387.52, 36,407.52 and 15,773.28

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Solution

The fourth proportional to 26,387.52, 36,407.52 and 15,773.28 is: 21,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,387.52 : 36,407.52 = 15,773.28 : x
  2. Step 2: Convert to fraction form
    26,387.52/36,407.52 = 15,773.28/x
  3. Step 3: Cross multiply
    26,387.52x = 36,407.52 × 15,773.28
  4. Step 4: Simplify right side
    26,387.52x = 574,266,007.07
  5. Step 5: Solve for x
    x = 574,266,007.07/26,387.52
  6. Step 6: Final answer
    x = 21,762.79

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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.