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Finding the Fourth Proportional to 22,928.30, 34,372.45 and 8,897.90

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Solution

The fourth proportional to 22,928.30, 34,372.45 and 8,897.90 is: 13,339.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,928.30 : 34,372.45 = 8,897.90 : x
  2. Step 2: Convert to fraction form
    22,928.30/34,372.45 = 8,897.90/x
  3. Step 3: Cross multiply
    22,928.30x = 34,372.45 × 8,897.90
  4. Step 4: Simplify right side
    22,928.30x = 305,842,622.86
  5. Step 5: Solve for x
    x = 305,842,622.86/22,928.30
  6. Step 6: Final answer
    x = 13,339.09

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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.