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Finding the Fourth Proportional to 67,994.55, 93,805.60 and 39,308.93

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Solution

The fourth proportional to 67,994.55, 93,805.60 and 39,308.93 is: 54,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,994.55 : 93,805.60 = 39,308.93 : x
  2. Step 2: Convert to fraction form
    67,994.55/93,805.60 = 39,308.93/x
  3. Step 3: Cross multiply
    67,994.55x = 93,805.60 × 39,308.93
  4. Step 4: Simplify right side
    67,994.55x = 3,687,397,764.01
  5. Step 5: Solve for x
    x = 3,687,397,764.01/67,994.55
  6. Step 6: Final answer
    x = 54,230.78

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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.