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Finding the Fourth Proportional to 86,535.52, 129,811.20 and 24,205.84

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Solution

The fourth proportional to 86,535.52, 129,811.20 and 24,205.84 is: 36,310.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,535.52 : 129,811.20 = 24,205.84 : x
  2. Step 2: Convert to fraction form
    86,535.52/129,811.20 = 24,205.84/x
  3. Step 3: Cross multiply
    86,535.52x = 129,811.20 × 24,205.84
  4. Step 4: Simplify right side
    86,535.52x = 3,142,189,137.41
  5. Step 5: Solve for x
    x = 3,142,189,137.41/86,535.52
  6. Step 6: Final answer
    x = 36,310.98

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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.