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Finding the Fourth Proportional to 47,992.80, 71,989.20 and 44,712.30

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Solution

The fourth proportional to 47,992.80, 71,989.20 and 44,712.30 is: 67,068.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,992.80 : 71,989.20 = 44,712.30 : x
  2. Step 2: Convert to fraction form
    47,992.80/71,989.20 = 44,712.30/x
  3. Step 3: Cross multiply
    47,992.80x = 71,989.20 × 44,712.30
  4. Step 4: Simplify right side
    47,992.80x = 3,218,802,707.16
  5. Step 5: Solve for x
    x = 3,218,802,707.16/47,992.80
  6. Step 6: Final answer
    x = 67,068.45

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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.