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Finding the Fourth Proportional to 57,356.87, 79,153.08 and 31,864.82

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Solution

The fourth proportional to 57,356.87, 79,153.08 and 31,864.82 is: 43,973.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,356.87 : 79,153.08 = 31,864.82 : x
  2. Step 2: Convert to fraction form
    57,356.87/79,153.08 = 31,864.82/x
  3. Step 3: Cross multiply
    57,356.87x = 79,153.08 × 31,864.82
  4. Step 4: Simplify right side
    57,356.87x = 2,522,198,646.65
  5. Step 5: Solve for x
    x = 2,522,198,646.65/57,356.87
  6. Step 6: Final answer
    x = 43,973.78

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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.