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Finding the Fourth Proportional to 56,863.62, 78,472.41 and 31,713.54

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Solution

The fourth proportional to 56,863.62, 78,472.41 and 31,713.54 is: 43,765.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,863.62 : 78,472.41 = 31,713.54 : x
  2. Step 2: Convert to fraction form
    56,863.62/78,472.41 = 31,713.54/x
  3. Step 3: Cross multiply
    56,863.62x = 78,472.41 × 31,713.54
  4. Step 4: Simplify right side
    56,863.62x = 2,488,637,913.43
  5. Step 5: Solve for x
    x = 2,488,637,913.43/56,863.62
  6. Step 6: Final answer
    x = 43,765.03

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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.