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Finding the Fourth Proportional to 40,037.52, 59,978.52 and 19,275.60

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Solution

The fourth proportional to 40,037.52, 59,978.52 and 19,275.60 is: 28,875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,037.52 : 59,978.52 = 19,275.60 : x
  2. Step 2: Convert to fraction form
    40,037.52/59,978.52 = 19,275.60/x
  3. Step 3: Cross multiply
    40,037.52x = 59,978.52 × 19,275.60
  4. Step 4: Simplify right side
    40,037.52x = 1,156,121,960.11
  5. Step 5: Solve for x
    x = 1,156,121,960.11/40,037.52
  6. Step 6: Final answer
    x = 28,875.96

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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.