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Finding the Fourth Proportional to 10,367.62, 15,554.12 and 2,972.62

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Solution

The fourth proportional to 10,367.62, 15,554.12 and 2,972.62 is: 4,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.62 : 15,554.12 = 2,972.62 : x
  2. Step 2: Convert to fraction form
    10,367.62/15,554.12 = 2,972.62/x
  3. Step 3: Cross multiply
    10,367.62x = 15,554.12 × 2,972.62
  4. Step 4: Simplify right side
    10,367.62x = 46,236,488.19
  5. Step 5: Solve for x
    x = 46,236,488.19/10,367.62
  6. Step 6: Final answer
    x = 4,459.70

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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.