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Finding the Fourth Proportional to 3,473.65, 5,210.29 and 876.61

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Solution

The fourth proportional to 3,473.65, 5,210.29 and 876.61 is: 1,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.65 : 5,210.29 = 876.61 : x
  2. Step 2: Convert to fraction form
    3,473.65/5,210.29 = 876.61/x
  3. Step 3: Cross multiply
    3,473.65x = 5,210.29 × 876.61
  4. Step 4: Simplify right side
    3,473.65x = 4,567,392.32
  5. Step 5: Solve for x
    x = 4,567,392.32/3,473.65
  6. Step 6: Final answer
    x = 1,314.87

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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.