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Finding the Fourth Proportional to 59,602.78, 89,348.60 and 20,132.30

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Solution

The fourth proportional to 59,602.78, 89,348.60 and 20,132.30 is: 30,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,602.78 : 89,348.60 = 20,132.30 : x
  2. Step 2: Convert to fraction form
    59,602.78/89,348.60 = 20,132.30/x
  3. Step 3: Cross multiply
    59,602.78x = 89,348.60 × 20,132.30
  4. Step 4: Simplify right side
    59,602.78x = 1,798,792,819.78
  5. Step 5: Solve for x
    x = 1,798,792,819.78/59,602.78
  6. Step 6: Final answer
    x = 30,179.68

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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.