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Finding the Fourth Proportional to 9,052.80, 11,781.60 and 9,052.80

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Solution

The fourth proportional to 9,052.80, 11,781.60 and 9,052.80 is: 11,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,052.80 : 11,781.60 = 9,052.80 : x
  2. Step 2: Convert to fraction form
    9,052.80/11,781.60 = 9,052.80/x
  3. Step 3: Cross multiply
    9,052.80x = 11,781.60 × 9,052.80
  4. Step 4: Simplify right side
    9,052.80x = 106,656,468.48
  5. Step 5: Solve for x
    x = 106,656,468.48/9,052.80
  6. Step 6: Final answer
    x = 11,781.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.