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Finding the Fourth Proportional to 70,987.55, 106,458.26 and 23,589.92

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Solution

The fourth proportional to 70,987.55, 106,458.26 and 23,589.92 is: 35,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,987.55 : 106,458.26 = 23,589.92 : x
  2. Step 2: Convert to fraction form
    70,987.55/106,458.26 = 23,589.92/x
  3. Step 3: Cross multiply
    70,987.55x = 106,458.26 × 23,589.92
  4. Step 4: Simplify right side
    70,987.55x = 2,511,341,186.50
  5. Step 5: Solve for x
    x = 2,511,341,186.50/70,987.55
  6. Step 6: Final answer
    x = 35,377.21

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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.