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Finding the Fourth Proportional to 10,882.55, 16,331.12 and 3,957.05

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Solution

The fourth proportional to 10,882.55, 16,331.12 and 3,957.05 is: 5,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,882.55 : 16,331.12 = 3,957.05 : x
  2. Step 2: Convert to fraction form
    10,882.55/16,331.12 = 3,957.05/x
  3. Step 3: Cross multiply
    10,882.55x = 16,331.12 × 3,957.05
  4. Step 4: Simplify right side
    10,882.55x = 64,623,058.40
  5. Step 5: Solve for x
    x = 64,623,058.40/10,882.55
  6. Step 6: Final answer
    x = 5,938.23

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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.