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Finding the Fourth Proportional to 21,957.57, 32,937.26 and 6,375.20

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Solution

The fourth proportional to 21,957.57, 32,937.26 and 6,375.20 is: 9,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957.57 : 32,937.26 = 6,375.20 : x
  2. Step 2: Convert to fraction form
    21,957.57/32,937.26 = 6,375.20/x
  3. Step 3: Cross multiply
    21,957.57x = 32,937.26 × 6,375.20
  4. Step 4: Simplify right side
    21,957.57x = 209,981,423.39
  5. Step 5: Solve for x
    x = 209,981,423.39/21,957.57
  6. Step 6: Final answer
    x = 9,563.05

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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.