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Finding the Fourth Proportional to 14,687.60, 22,042.20 and 9,755.60

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Solution

The fourth proportional to 14,687.60, 22,042.20 and 9,755.60 is: 14,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,687.60 : 22,042.20 = 9,755.60 : x
  2. Step 2: Convert to fraction form
    14,687.60/22,042.20 = 9,755.60/x
  3. Step 3: Cross multiply
    14,687.60x = 22,042.20 × 9,755.60
  4. Step 4: Simplify right side
    14,687.60x = 215,034,886.32
  5. Step 5: Solve for x
    x = 215,034,886.32/14,687.60
  6. Step 6: Final answer
    x = 14,640.57

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1.5x scale

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.