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Finding the Fourth Proportional to 3,592.76, 5,389.14 and 1,127.79

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Solution

The fourth proportional to 3,592.76, 5,389.14 and 1,127.79 is: 1,691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,592.76 : 5,389.14 = 1,127.79 : x
  2. Step 2: Convert to fraction form
    3,592.76/5,389.14 = 1,127.79/x
  3. Step 3: Cross multiply
    3,592.76x = 5,389.14 × 1,127.79
  4. Step 4: Simplify right side
    3,592.76x = 6,077,818.20
  5. Step 5: Solve for x
    x = 6,077,818.20/3,592.76
  6. Step 6: Final answer
    x = 1,691.69

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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.