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Finding the Fourth Proportional to 17,867.62, 24,655.20 and 9,907.90

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Solution

The fourth proportional to 17,867.62, 24,655.20 and 9,907.90 is: 13,671.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,867.62 : 24,655.20 = 9,907.90 : x
  2. Step 2: Convert to fraction form
    17,867.62/24,655.20 = 9,907.90/x
  3. Step 3: Cross multiply
    17,867.62x = 24,655.20 × 9,907.90
  4. Step 4: Simplify right side
    17,867.62x = 244,281,256.08
  5. Step 5: Solve for x
    x = 244,281,256.08/17,867.62
  6. Step 6: Final answer
    x = 13,671.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.