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Finding the Fourth Proportional to 86,755.46, 130,133.19 and 27,591.26

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Solution

The fourth proportional to 86,755.46, 130,133.19 and 27,591.26 is: 41,386.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,755.46 : 130,133.19 = 27,591.26 : x
  2. Step 2: Convert to fraction form
    86,755.46/130,133.19 = 27,591.26/x
  3. Step 3: Cross multiply
    86,755.46x = 130,133.19 × 27,591.26
  4. Step 4: Simplify right side
    86,755.46x = 3,590,538,679.92
  5. Step 5: Solve for x
    x = 3,590,538,679.92/86,755.46
  6. Step 6: Final answer
    x = 41,386.89

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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.