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Finding the Fourth Proportional to 40,805.92, 61,200.24 and 13,097.44

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Solution

The fourth proportional to 40,805.92, 61,200.24 and 13,097.44 is: 19,643.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,805.92 : 61,200.24 = 13,097.44 : x
  2. Step 2: Convert to fraction form
    40,805.92/61,200.24 = 13,097.44/x
  3. Step 3: Cross multiply
    40,805.92x = 61,200.24 × 13,097.44
  4. Step 4: Simplify right side
    40,805.92x = 801,566,471.39
  5. Step 5: Solve for x
    x = 801,566,471.39/40,805.92
  6. Step 6: Final answer
    x = 19,643.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.