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Finding the Fourth Proportional to 40,608.80, 60,901.52 and 15,646.88

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Solution

The fourth proportional to 40,608.80, 60,901.52 and 15,646.88 is: 23,465.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,608.80 : 60,901.52 = 15,646.88 : x
  2. Step 2: Convert to fraction form
    40,608.80/60,901.52 = 15,646.88/x
  3. Step 3: Cross multiply
    40,608.80x = 60,901.52 × 15,646.88
  4. Step 4: Simplify right side
    40,608.80x = 952,918,775.26
  5. Step 5: Solve for x
    x = 952,918,775.26/40,608.80
  6. Step 6: Final answer
    x = 23,465.82

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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.