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Finding the Fourth Proportional to 69,162.87, 95,488.90 and 56,446.43

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Solution

The fourth proportional to 69,162.87, 95,488.90 and 56,446.43 is: 77,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162.87 : 95,488.90 = 56,446.43 : x
  2. Step 2: Convert to fraction form
    69,162.87/95,488.90 = 56,446.43/x
  3. Step 3: Cross multiply
    69,162.87x = 95,488.90 × 56,446.43
  4. Step 4: Simplify right side
    69,162.87x = 5,390,007,032.18
  5. Step 5: Solve for x
    x = 5,390,007,032.18/69,162.87
  6. Step 6: Final answer
    x = 77,932.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.