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Finding the Fourth Proportional to 4,641.74, 6,961.39 and 1,718.45

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Solution

The fourth proportional to 4,641.74, 6,961.39 and 1,718.45 is: 2,577.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,641.74 : 6,961.39 = 1,718.45 : x
  2. Step 2: Convert to fraction form
    4,641.74/6,961.39 = 1,718.45/x
  3. Step 3: Cross multiply
    4,641.74x = 6,961.39 × 1,718.45
  4. Step 4: Simplify right side
    4,641.74x = 11,962,800.65
  5. Step 5: Solve for x
    x = 11,962,800.65/4,641.74
  6. Step 6: Final answer
    x = 2,577.22

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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.