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Finding the Fourth Proportional to 56,863.81, 85,295.72 and 15,310.81

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Solution

The fourth proportional to 56,863.81, 85,295.72 and 15,310.81 is: 22,966.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,863.81 : 85,295.72 = 15,310.81 : x
  2. Step 2: Convert to fraction form
    56,863.81/85,295.72 = 15,310.81/x
  3. Step 3: Cross multiply
    56,863.81x = 85,295.72 × 15,310.81
  4. Step 4: Simplify right side
    56,863.81x = 1,305,946,562.73
  5. Step 5: Solve for x
    x = 1,305,946,562.73/56,863.81
  6. Step 6: Final answer
    x = 22,966.22

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Similar ratio
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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.