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Finding the Fourth Proportional to 29,140.56, 43,701.66 and 19,332

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Solution

The fourth proportional to 29,140.56, 43,701.66 and 19,332 is: 28,991.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,140.56 : 43,701.66 = 19,332 : x
  2. Step 2: Convert to fraction form
    29,140.56/43,701.66 = 19,332/x
  3. Step 3: Cross multiply
    29,140.56x = 43,701.66 × 19,332
  4. Step 4: Simplify right side
    29,140.56x = 844,840,491.12
  5. Step 5: Solve for x
    x = 844,840,491.12/29,140.56
  6. Step 6: Final answer
    x = 28,991.91

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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.