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Finding the Fourth Proportional to 10,367.88, 15,554.49 and 2,972.88

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Solution

The fourth proportional to 10,367.88, 15,554.49 and 2,972.88 is: 4,460.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,367.88 : 15,554.49 = 2,972.88 : x
  2. Step 2: Convert to fraction form
    10,367.88/15,554.49 = 2,972.88/x
  3. Step 3: Cross multiply
    10,367.88x = 15,554.49 × 2,972.88
  4. Step 4: Simplify right side
    10,367.88x = 46,241,632.23
  5. Step 5: Solve for x
    x = 46,241,632.23/10,367.88
  6. Step 6: Final answer
    x = 4,460.09

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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.