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Finding the Fourth Proportional to 71,567.55, 107,404.65 and 27,280.80

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Solution

The fourth proportional to 71,567.55, 107,404.65 and 27,280.80 is: 40,941.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,567.55 : 107,404.65 = 27,280.80 : x
  2. Step 2: Convert to fraction form
    71,567.55/107,404.65 = 27,280.80/x
  3. Step 3: Cross multiply
    71,567.55x = 107,404.65 × 27,280.80
  4. Step 4: Simplify right side
    71,567.55x = 2,930,084,775.72
  5. Step 5: Solve for x
    x = 2,930,084,775.72/71,567.55
  6. Step 6: Final answer
    x = 40,941.53

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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.