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Finding the Fourth Proportional to 86,171.31, 129,259.13 and 23,842.35

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Solution

The fourth proportional to 86,171.31, 129,259.13 and 23,842.35 is: 35,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,171.31 : 129,259.13 = 23,842.35 : x
  2. Step 2: Convert to fraction form
    86,171.31/129,259.13 = 23,842.35/x
  3. Step 3: Cross multiply
    86,171.31x = 129,259.13 × 23,842.35
  4. Step 4: Simplify right side
    86,171.31x = 3,081,841,298.94
  5. Step 5: Solve for x
    x = 3,081,841,298.94/86,171.31
  6. Step 6: Final answer
    x = 35,764.12

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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.