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Finding the Fourth Proportional to 35,073.72, 48,385.80 and 20,723.76

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Solution

The fourth proportional to 35,073.72, 48,385.80 and 20,723.76 is: 28,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,073.72 : 48,385.80 = 20,723.76 : x
  2. Step 2: Convert to fraction form
    35,073.72/48,385.80 = 20,723.76/x
  3. Step 3: Cross multiply
    35,073.72x = 48,385.80 × 20,723.76
  4. Step 4: Simplify right side
    35,073.72x = 1,002,735,706.61
  5. Step 5: Solve for x
    x = 1,002,735,706.61/35,073.72
  6. Step 6: Final answer
    x = 28,589.37

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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.