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Finding the Fourth Proportional to 48,144.80, 72,217.20 and 47,837.60

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Solution

The fourth proportional to 48,144.80, 72,217.20 and 47,837.60 is: 71,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,144.80 : 72,217.20 = 47,837.60 : x
  2. Step 2: Convert to fraction form
    48,144.80/72,217.20 = 47,837.60/x
  3. Step 3: Cross multiply
    48,144.80x = 72,217.20 × 47,837.60
  4. Step 4: Simplify right side
    48,144.80x = 3,454,697,526.72
  5. Step 5: Solve for x
    x = 3,454,697,526.72/48,144.80
  6. Step 6: Final answer
    x = 71,756.40

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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.