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Finding the Fourth Proportional to 59,434.60, 89,151.90 and 19,987.60

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Solution

The fourth proportional to 59,434.60, 89,151.90 and 19,987.60 is: 29,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,434.60 : 89,151.90 = 19,987.60 : x
  2. Step 2: Convert to fraction form
    59,434.60/89,151.90 = 19,987.60/x
  3. Step 3: Cross multiply
    59,434.60x = 89,151.90 × 19,987.60
  4. Step 4: Simplify right side
    59,434.60x = 1,781,932,516.44
  5. Step 5: Solve for x
    x = 1,781,932,516.44/59,434.60
  6. Step 6: Final answer
    x = 29,981.40

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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.