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Finding the Fourth Proportional to 43,959.12, 65,950.20 and 19,340.88

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Solution

The fourth proportional to 43,959.12, 65,950.20 and 19,340.88 is: 29,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,959.12 : 65,950.20 = 19,340.88 : x
  2. Step 2: Convert to fraction form
    43,959.12/65,950.20 = 19,340.88/x
  3. Step 3: Cross multiply
    43,959.12x = 65,950.20 × 19,340.88
  4. Step 4: Simplify right side
    43,959.12x = 1,275,534,904.18
  5. Step 5: Solve for x
    x = 1,275,534,904.18/43,959.12
  6. Step 6: Final answer
    x = 29,016.39

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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.