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Finding the Fourth Proportional to 8,969.54, 12,375.68 and 5,432.07

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Solution

The fourth proportional to 8,969.54, 12,375.68 and 5,432.07 is: 7,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.54 : 12,375.68 = 5,432.07 : x
  2. Step 2: Convert to fraction form
    8,969.54/12,375.68 = 5,432.07/x
  3. Step 3: Cross multiply
    8,969.54x = 12,375.68 × 5,432.07
  4. Step 4: Simplify right side
    8,969.54x = 67,225,532.90
  5. Step 5: Solve for x
    x = 67,225,532.90/8,969.54
  6. Step 6: Final answer
    x = 7,494.87

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1.5x scale

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.