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Finding the Fourth Proportional to 59,908.60, 89,862.90 and 28,727.80

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Solution

The fourth proportional to 59,908.60, 89,862.90 and 28,727.80 is: 43,091.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,908.60 : 89,862.90 = 28,727.80 : x
  2. Step 2: Convert to fraction form
    59,908.60/89,862.90 = 28,727.80/x
  3. Step 3: Cross multiply
    59,908.60x = 89,862.90 × 28,727.80
  4. Step 4: Simplify right side
    59,908.60x = 2,581,563,418.62
  5. Step 5: Solve for x
    x = 2,581,563,418.62/59,908.60
  6. Step 6: Final answer
    x = 43,091.70

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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.