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Finding the Fourth Proportional to 86,811.70, 130,217.55 and 24,482.20

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Solution

The fourth proportional to 86,811.70, 130,217.55 and 24,482.20 is: 36,723.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,811.70 : 130,217.55 = 24,482.20 : x
  2. Step 2: Convert to fraction form
    86,811.70/130,217.55 = 24,482.20/x
  3. Step 3: Cross multiply
    86,811.70x = 130,217.55 × 24,482.20
  4. Step 4: Simplify right side
    86,811.70x = 3,188,012,102.61
  5. Step 5: Solve for x
    x = 3,188,012,102.61/86,811.70
  6. Step 6: Final answer
    x = 36,723.30

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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.