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Finding the Fourth Proportional to 86,517.81, 129,794.01 and 36,597.69

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Solution

The fourth proportional to 86,517.81, 129,794.01 and 36,597.69 is: 54,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,517.81 : 129,794.01 = 36,597.69 : x
  2. Step 2: Convert to fraction form
    86,517.81/129,794.01 = 36,597.69/x
  3. Step 3: Cross multiply
    86,517.81x = 129,794.01 × 36,597.69
  4. Step 4: Simplify right side
    86,517.81x = 4,750,160,941.84
  5. Step 5: Solve for x
    x = 4,750,160,941.84/86,517.81
  6. Step 6: Final answer
    x = 54,903.85

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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.