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Finding the Fourth Proportional to 48,224.80, 72,337.20 and 39,930.40

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Solution

The fourth proportional to 48,224.80, 72,337.20 and 39,930.40 is: 59,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,224.80 : 72,337.20 = 39,930.40 : x
  2. Step 2: Convert to fraction form
    48,224.80/72,337.20 = 39,930.40/x
  3. Step 3: Cross multiply
    48,224.80x = 72,337.20 × 39,930.40
  4. Step 4: Simplify right side
    48,224.80x = 2,888,453,330.88
  5. Step 5: Solve for x
    x = 2,888,453,330.88/48,224.80
  6. Step 6: Final answer
    x = 59,895.60

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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.