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Finding the Fourth Proportional to 2,470.70, 3,411.11 and 1,725.91

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Solution

The fourth proportional to 2,470.70, 3,411.11 and 1,725.91 is: 2,382.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.70 : 3,411.11 = 1,725.91 : x
  2. Step 2: Convert to fraction form
    2,470.70/3,411.11 = 1,725.91/x
  3. Step 3: Cross multiply
    2,470.70x = 3,411.11 × 1,725.91
  4. Step 4: Simplify right side
    2,470.70x = 5,887,264.65
  5. Step 5: Solve for x
    x = 5,887,264.65/2,470.70
  6. Step 6: Final answer
    x = 2,382.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.