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Finding the Fourth Proportional to 8,925.32, 13,391 and 3,380.24

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Solution

The fourth proportional to 8,925.32, 13,391 and 3,380.24 is: 5,071.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.32 : 13,391 = 3,380.24 : x
  2. Step 2: Convert to fraction form
    8,925.32/13,391 = 3,380.24/x
  3. Step 3: Cross multiply
    8,925.32x = 13,391 × 3,380.24
  4. Step 4: Simplify right side
    8,925.32x = 45,264,793.84
  5. Step 5: Solve for x
    x = 45,264,793.84/8,925.32
  6. Step 6: Final answer
    x = 5,071.50

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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.