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Finding the Fourth Proportional to 7,169,500.80, 10,754,251.20 and 6,749,251.20

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Solution

The fourth proportional to 7,169,500.80, 10,754,251.20 and 6,749,251.20 is: 10,123,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,169,500.80 : 10,754,251.20 = 6,749,251.20 : x
  2. Step 2: Convert to fraction form
    7,169,500.80/10,754,251.20 = 6,749,251.20/x
  3. Step 3: Cross multiply
    7,169,500.80x = 10,754,251.20 × 6,749,251.20
  4. Step 4: Simplify right side
    7,169,500.80x = 72,583,142,816,701.44
  5. Step 5: Solve for x
    x = 72,583,142,816,701.44/7,169,500.80
  6. Step 6: Final answer
    x = 10,123,876.80

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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.