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Finding the Fourth Proportional to 8,801.76, 12,147.48 and 5,446.80

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Solution

The fourth proportional to 8,801.76, 12,147.48 and 5,446.80 is: 7,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,801.76 : 12,147.48 = 5,446.80 : x
  2. Step 2: Convert to fraction form
    8,801.76/12,147.48 = 5,446.80/x
  3. Step 3: Cross multiply
    8,801.76x = 12,147.48 × 5,446.80
  4. Step 4: Simplify right side
    8,801.76x = 66,164,894.06
  5. Step 5: Solve for x
    x = 66,164,894.06/8,801.76
  6. Step 6: Final answer
    x = 7,517.23

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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.