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Finding the Fourth Proportional to 71,758.01, 107,660.08 and 21,847.77

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Solution

The fourth proportional to 71,758.01, 107,660.08 and 21,847.77 is: 32,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,758.01 : 107,660.08 = 21,847.77 : x
  2. Step 2: Convert to fraction form
    71,758.01/107,660.08 = 21,847.77/x
  3. Step 3: Cross multiply
    71,758.01x = 107,660.08 × 21,847.77
  4. Step 4: Simplify right side
    71,758.01x = 2,352,132,666.02
  5. Step 5: Solve for x
    x = 2,352,132,666.02/71,758.01
  6. Step 6: Final answer
    x = 32,778.68

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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.