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Finding the Fourth Proportional to 4,998.66, 7,498.68 and 4,691.12

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Solution

The fourth proportional to 4,998.66, 7,498.68 and 4,691.12 is: 7,037.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,998.66 : 7,498.68 = 4,691.12 : x
  2. Step 2: Convert to fraction form
    4,998.66/7,498.68 = 4,691.12/x
  3. Step 3: Cross multiply
    4,998.66x = 7,498.68 × 4,691.12
  4. Step 4: Simplify right side
    4,998.66x = 35,177,152.64
  5. Step 5: Solve for x
    x = 35,177,152.64/4,998.66
  6. Step 6: Final answer
    x = 7,037.31

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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.