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Finding the Fourth Proportional to 15,281.90, 22,922.85 and 8,708.48

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Solution

The fourth proportional to 15,281.90, 22,922.85 and 8,708.48 is: 13,062.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.90 : 22,922.85 = 8,708.48 : x
  2. Step 2: Convert to fraction form
    15,281.90/22,922.85 = 8,708.48/x
  3. Step 3: Cross multiply
    15,281.90x = 22,922.85 × 8,708.48
  4. Step 4: Simplify right side
    15,281.90x = 199,623,066.15
  5. Step 5: Solve for x
    x = 199,623,066.15/15,281.90
  6. Step 6: Final answer
    x = 13,062.72

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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.