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Finding the Fourth Proportional to 86,955.66, 130,452.22 and 26,982.96

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Solution

The fourth proportional to 86,955.66, 130,452.22 and 26,982.96 is: 40,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,955.66 : 130,452.22 = 26,982.96 : x
  2. Step 2: Convert to fraction form
    86,955.66/130,452.22 = 26,982.96/x
  3. Step 3: Cross multiply
    86,955.66x = 130,452.22 × 26,982.96
  4. Step 4: Simplify right side
    86,955.66x = 3,519,987,034.17
  5. Step 5: Solve for x
    x = 3,519,987,034.17/86,955.66
  6. Step 6: Final answer
    x = 40,480.25

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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.