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Finding the Fourth Proportional to 4,658.87, 6,988.29 and 1,371.99

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Solution

The fourth proportional to 4,658.87, 6,988.29 and 1,371.99 is: 2,057.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,658.87 : 6,988.29 = 1,371.99 : x
  2. Step 2: Convert to fraction form
    4,658.87/6,988.29 = 1,371.99/x
  3. Step 3: Cross multiply
    4,658.87x = 6,988.29 × 1,371.99
  4. Step 4: Simplify right side
    4,658.87x = 9,587,853.47
  5. Step 5: Solve for x
    x = 9,587,853.47/4,658.87
  6. Step 6: Final answer
    x = 2,057.98

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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.