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Finding the Fourth Proportional to 29,472.10, 44,208.15 and 20,140.90

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Solution

The fourth proportional to 29,472.10, 44,208.15 and 20,140.90 is: 30,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,472.10 : 44,208.15 = 20,140.90 : x
  2. Step 2: Convert to fraction form
    29,472.10/44,208.15 = 20,140.90/x
  3. Step 3: Cross multiply
    29,472.10x = 44,208.15 × 20,140.90
  4. Step 4: Simplify right side
    29,472.10x = 890,391,928.34
  5. Step 5: Solve for x
    x = 890,391,928.34/29,472.10
  6. Step 6: Final answer
    x = 30,211.35

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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.