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Finding the Fourth Proportional to 3,341.71, 5,009.12 and 1,149.24

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Solution

The fourth proportional to 3,341.71, 5,009.12 and 1,149.24 is: 1,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,341.71 : 5,009.12 = 1,149.24 : x
  2. Step 2: Convert to fraction form
    3,341.71/5,009.12 = 1,149.24/x
  3. Step 3: Cross multiply
    3,341.71x = 5,009.12 × 1,149.24
  4. Step 4: Simplify right side
    3,341.71x = 5,756,681.07
  5. Step 5: Solve for x
    x = 5,756,681.07/3,341.71
  6. Step 6: Final answer
    x = 1,722.68

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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.