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Finding the Fourth Proportional to 86,285.88, 129,502.44 and 33,732.36

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Solution

The fourth proportional to 86,285.88, 129,502.44 and 33,732.36 is: 50,627.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.88 : 129,502.44 = 33,732.36 : x
  2. Step 2: Convert to fraction form
    86,285.88/129,502.44 = 33,732.36/x
  3. Step 3: Cross multiply
    86,285.88x = 129,502.44 × 33,732.36
  4. Step 4: Simplify right side
    86,285.88x = 4,368,422,926.96
  5. Step 5: Solve for x
    x = 4,368,422,926.96/86,285.88
  6. Step 6: Final answer
    x = 50,627.32

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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.