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Finding the Fourth Proportional to 71,671.56, 107,520.32 and 29,528.24

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Solution

The fourth proportional to 71,671.56, 107,520.32 and 29,528.24 is: 44,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,671.56 : 107,520.32 = 29,528.24 : x
  2. Step 2: Convert to fraction form
    71,671.56/107,520.32 = 29,528.24/x
  3. Step 3: Cross multiply
    71,671.56x = 107,520.32 × 29,528.24
  4. Step 4: Simplify right side
    71,671.56x = 3,174,885,128.59
  5. Step 5: Solve for x
    x = 3,174,885,128.59/71,671.56
  6. Step 6: Final answer
    x = 44,297.70

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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.