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Finding the Fourth Proportional to 5,172.48, 7,168.08 and 5,073.96

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Solution

The fourth proportional to 5,172.48, 7,168.08 and 5,073.96 is: 7,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.48 : 7,168.08 = 5,073.96 : x
  2. Step 2: Convert to fraction form
    5,172.48/7,168.08 = 5,073.96/x
  3. Step 3: Cross multiply
    5,172.48x = 7,168.08 × 5,073.96
  4. Step 4: Simplify right side
    5,172.48x = 36,370,551.20
  5. Step 5: Solve for x
    x = 36,370,551.20/5,172.48
  6. Step 6: Final answer
    x = 7,031.55

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.