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Finding the Fourth Proportional to 5,714.66, 7,888.65 and 3,726.92

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Solution

The fourth proportional to 5,714.66, 7,888.65 and 3,726.92 is: 5,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,714.66 : 7,888.65 = 3,726.92 : x
  2. Step 2: Convert to fraction form
    5,714.66/7,888.65 = 3,726.92/x
  3. Step 3: Cross multiply
    5,714.66x = 7,888.65 × 3,726.92
  4. Step 4: Simplify right side
    5,714.66x = 29,400,367.46
  5. Step 5: Solve for x
    x = 29,400,367.46/5,714.66
  6. Step 6: Final answer
    x = 5,144.73

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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.