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Finding the Fourth Proportional to 43,304.99, 64,959.29 and 13,722.17

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Solution

The fourth proportional to 43,304.99, 64,959.29 and 13,722.17 is: 20,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,304.99 : 64,959.29 = 13,722.17 : x
  2. Step 2: Convert to fraction form
    43,304.99/64,959.29 = 13,722.17/x
  3. Step 3: Cross multiply
    43,304.99x = 64,959.29 × 13,722.17
  4. Step 4: Simplify right side
    43,304.99x = 891,382,027.05
  5. Step 5: Solve for x
    x = 891,382,027.05/43,304.99
  6. Step 6: Final answer
    x = 20,583.82

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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.