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Finding the Fourth Proportional to 86,067.64, 129,051.80 and 33,415.62

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Solution

The fourth proportional to 86,067.64, 129,051.80 and 33,415.62 is: 50,104.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,067.64 : 129,051.80 = 33,415.62 : x
  2. Step 2: Convert to fraction form
    86,067.64/129,051.80 = 33,415.62/x
  3. Step 3: Cross multiply
    86,067.64x = 129,051.80 × 33,415.62
  4. Step 4: Simplify right side
    86,067.64x = 4,312,345,909.12
  5. Step 5: Solve for x
    x = 4,312,345,909.12/86,067.64
  6. Step 6: Final answer
    x = 50,104.15

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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.