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Finding the Fourth Proportional to 2,168.93, 3,252.08 and 707.90

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Solution

The fourth proportional to 2,168.93, 3,252.08 and 707.90 is: 1,061.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.93 : 3,252.08 = 707.90 : x
  2. Step 2: Convert to fraction form
    2,168.93/3,252.08 = 707.90/x
  3. Step 3: Cross multiply
    2,168.93x = 3,252.08 × 707.90
  4. Step 4: Simplify right side
    2,168.93x = 2,302,132.94
  5. Step 5: Solve for x
    x = 2,302,132.94/2,168.93
  6. Step 6: Final answer
    x = 1,061.41

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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.