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Finding the Fourth Proportional to 86,191.71, 129,262.46 and 33,588.69

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Solution

The fourth proportional to 86,191.71, 129,262.46 and 33,588.69 is: 50,373.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,191.71 : 129,262.46 = 33,588.69 : x
  2. Step 2: Convert to fraction form
    86,191.71/129,262.46 = 33,588.69/x
  3. Step 3: Cross multiply
    86,191.71x = 129,262.46 × 33,588.69
  4. Step 4: Simplify right side
    86,191.71x = 4,341,756,529.63
  5. Step 5: Solve for x
    x = 4,341,756,529.63/86,191.71
  6. Step 6: Final answer
    x = 50,373.25

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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.