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Finding the Fourth Proportional to 4,480.53, 6,721.61 and 1,707.90

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Solution

The fourth proportional to 4,480.53, 6,721.61 and 1,707.90 is: 2,562.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.53 : 6,721.61 = 1,707.90 : x
  2. Step 2: Convert to fraction form
    4,480.53/6,721.61 = 1,707.90/x
  3. Step 3: Cross multiply
    4,480.53x = 6,721.61 × 1,707.90
  4. Step 4: Simplify right side
    4,480.53x = 11,479,829.18
  5. Step 5: Solve for x
    x = 11,479,829.18/4,480.53
  6. Step 6: Final answer
    x = 2,562.16

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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.