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Finding the Fourth Proportional to 86,597.96, 129,900.60 and 27,432.32

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Solution

The fourth proportional to 86,597.96, 129,900.60 and 27,432.32 is: 41,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,597.96 : 129,900.60 = 27,432.32 : x
  2. Step 2: Convert to fraction form
    86,597.96/129,900.60 = 27,432.32/x
  3. Step 3: Cross multiply
    86,597.96x = 129,900.60 × 27,432.32
  4. Step 4: Simplify right side
    86,597.96x = 3,563,474,177.89
  5. Step 5: Solve for x
    x = 3,563,474,177.89/86,597.96
  6. Step 6: Final answer
    x = 41,149.63

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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.