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Finding the Fourth Proportional to 39,461.50, 54,456.90 and 22,694.50

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Solution

The fourth proportional to 39,461.50, 54,456.90 and 22,694.50 is: 31,318.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.50 : 54,456.90 = 22,694.50 : x
  2. Step 2: Convert to fraction form
    39,461.50/54,456.90 = 22,694.50/x
  3. Step 3: Cross multiply
    39,461.50x = 54,456.90 × 22,694.50
  4. Step 4: Simplify right side
    39,461.50x = 1,235,872,117.05
  5. Step 5: Solve for x
    x = 1,235,872,117.05/39,461.50
  6. Step 6: Final answer
    x = 31,318.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.