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Finding the Fourth Proportional to 59,657.40, 89,502.80 and 20,217.48

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Solution

The fourth proportional to 59,657.40, 89,502.80 and 20,217.48 is: 30,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,657.40 : 89,502.80 = 20,217.48 : x
  2. Step 2: Convert to fraction form
    59,657.40/89,502.80 = 20,217.48/x
  3. Step 3: Cross multiply
    59,657.40x = 89,502.80 × 20,217.48
  4. Step 4: Simplify right side
    59,657.40x = 1,809,520,967.86
  5. Step 5: Solve for x
    x = 1,809,520,967.86/59,657.40
  6. Step 6: Final answer
    x = 30,331.88

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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.