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Finding the Fourth Proportional to 5,115.47, 7,675.02 and 2,926.04

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Solution

The fourth proportional to 5,115.47, 7,675.02 and 2,926.04 is: 4,390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,115.47 : 7,675.02 = 2,926.04 : x
  2. Step 2: Convert to fraction form
    5,115.47/7,675.02 = 2,926.04/x
  3. Step 3: Cross multiply
    5,115.47x = 7,675.02 × 2,926.04
  4. Step 4: Simplify right side
    5,115.47x = 22,457,377.15
  5. Step 5: Solve for x
    x = 22,457,377.15/5,115.47
  6. Step 6: Final answer
    x = 4,390.09

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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.