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Finding the Fourth Proportional to 69,463.87, 95,861.95 and 42,590.90

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Solution

The fourth proportional to 69,463.87, 95,861.95 and 42,590.90 is: 58,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,463.87 : 95,861.95 = 42,590.90 : x
  2. Step 2: Convert to fraction form
    69,463.87/95,861.95 = 42,590.90/x
  3. Step 3: Cross multiply
    69,463.87x = 95,861.95 × 42,590.90
  4. Step 4: Simplify right side
    69,463.87x = 4,082,846,859.43
  5. Step 5: Solve for x
    x = 4,082,846,859.43/69,463.87
  6. Step 6: Final answer
    x = 58,776.56

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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.