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Finding the Fourth Proportional to 78,687.41, 118,030.97 and 24,656.23

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Solution

The fourth proportional to 78,687.41, 118,030.97 and 24,656.23 is: 36,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,687.41 : 118,030.97 = 24,656.23 : x
  2. Step 2: Convert to fraction form
    78,687.41/118,030.97 = 24,656.23/x
  3. Step 3: Cross multiply
    78,687.41x = 118,030.97 × 24,656.23
  4. Step 4: Simplify right side
    78,687.41x = 2,910,198,952.62
  5. Step 5: Solve for x
    x = 2,910,198,952.62/78,687.41
  6. Step 6: Final answer
    x = 36,984.30

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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.