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Finding the Fourth Proportional to 48,233.60, 72,350.40 and 39,478.40

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Solution

The fourth proportional to 48,233.60, 72,350.40 and 39,478.40 is: 59,217.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,233.60 : 72,350.40 = 39,478.40 : x
  2. Step 2: Convert to fraction form
    48,233.60/72,350.40 = 39,478.40/x
  3. Step 3: Cross multiply
    48,233.60x = 72,350.40 × 39,478.40
  4. Step 4: Simplify right side
    48,233.60x = 2,856,278,031.36
  5. Step 5: Solve for x
    x = 2,856,278,031.36/48,233.60
  6. Step 6: Final answer
    x = 59,217.60

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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.