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Finding the Fourth Proportional to 15,301.80, 22,934.70 and 8,734.20

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Solution

The fourth proportional to 15,301.80, 22,934.70 and 8,734.20 is: 13,091.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.80 : 22,934.70 = 8,734.20 : x
  2. Step 2: Convert to fraction form
    15,301.80/22,934.70 = 8,734.20/x
  3. Step 3: Cross multiply
    15,301.80x = 22,934.70 × 8,734.20
  4. Step 4: Simplify right side
    15,301.80x = 200,316,256.74
  5. Step 5: Solve for x
    x = 200,316,256.74/15,301.80
  6. Step 6: Final answer
    x = 13,091.03

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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.