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Finding the Fourth Proportional to 9,294.60, 12,829.04 and 5,755.80

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Solution

The fourth proportional to 9,294.60, 12,829.04 and 5,755.80 is: 7,944.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,294.60 : 12,829.04 = 5,755.80 : x
  2. Step 2: Convert to fraction form
    9,294.60/12,829.04 = 5,755.80/x
  3. Step 3: Cross multiply
    9,294.60x = 12,829.04 × 5,755.80
  4. Step 4: Simplify right side
    9,294.60x = 73,841,388.43
  5. Step 5: Solve for x
    x = 73,841,388.43/9,294.60
  6. Step 6: Final answer
    x = 7,944.55

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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.