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Finding the Fourth Proportional to 4,472.68, 6,700.30 and 2,929

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Solution

The fourth proportional to 4,472.68, 6,700.30 and 2,929 is: 4,387.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,472.68 : 6,700.30 = 2,929 : x
  2. Step 2: Convert to fraction form
    4,472.68/6,700.30 = 2,929/x
  3. Step 3: Cross multiply
    4,472.68x = 6,700.30 × 2,929
  4. Step 4: Simplify right side
    4,472.68x = 19,625,178.70
  5. Step 5: Solve for x
    x = 19,625,178.70/4,472.68
  6. Step 6: Final answer
    x = 4,387.79

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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.