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Finding the Fourth Proportional to 9,073.60, 13,610.80 and 5,124.80

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Solution

The fourth proportional to 9,073.60, 13,610.80 and 5,124.80 is: 7,687.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,073.60 : 13,610.80 = 5,124.80 : x
  2. Step 2: Convert to fraction form
    9,073.60/13,610.80 = 5,124.80/x
  3. Step 3: Cross multiply
    9,073.60x = 13,610.80 × 5,124.80
  4. Step 4: Simplify right side
    9,073.60x = 69,752,627.84
  5. Step 5: Solve for x
    x = 69,752,627.84/9,073.60
  6. Step 6: Final answer
    x = 7,687.43

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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.