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Finding the Fourth Proportional to 86,000.63, 129,028.62 and 36,067.32

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Solution

The fourth proportional to 86,000.63, 129,028.62 and 36,067.32 is: 54,112.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,000.63 : 129,028.62 = 36,067.32 : x
  2. Step 2: Convert to fraction form
    86,000.63/129,028.62 = 36,067.32/x
  3. Step 3: Cross multiply
    86,000.63x = 129,028.62 × 36,067.32
  4. Step 4: Simplify right side
    86,000.63x = 4,653,716,526.70
  5. Step 5: Solve for x
    x = 4,653,716,526.70/86,000.63
  6. Step 6: Final answer
    x = 54,112.59

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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.