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Finding the Fourth Proportional to 15,078.60, 22,608.78 and 6,757.08

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Solution

The fourth proportional to 15,078.60, 22,608.78 and 6,757.08 is: 10,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.60 : 22,608.78 = 6,757.08 : x
  2. Step 2: Convert to fraction form
    15,078.60/22,608.78 = 6,757.08/x
  3. Step 3: Cross multiply
    15,078.60x = 22,608.78 × 6,757.08
  4. Step 4: Simplify right side
    15,078.60x = 152,769,335.16
  5. Step 5: Solve for x
    x = 152,769,335.16/15,078.60
  6. Step 6: Final answer
    x = 10,131.53

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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.