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Finding the Fourth Proportional to 5,713.66, 7,887.27 and 3,725.92

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Solution

The fourth proportional to 5,713.66, 7,887.27 and 3,725.92 is: 5,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.66 : 7,887.27 = 3,725.92 : x
  2. Step 2: Convert to fraction form
    5,713.66/7,887.27 = 3,725.92/x
  3. Step 3: Cross multiply
    5,713.66x = 7,887.27 × 3,725.92
  4. Step 4: Simplify right side
    5,713.66x = 29,387,337.04
  5. Step 5: Solve for x
    x = 29,387,337.04/5,713.66
  6. Step 6: Final answer
    x = 5,143.35

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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.