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Finding the Fourth Proportional to 5,360.70, 7,397.72 and 3,002.70

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Solution

The fourth proportional to 5,360.70, 7,397.72 and 3,002.70 is: 4,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.70 : 7,397.72 = 3,002.70 : x
  2. Step 2: Convert to fraction form
    5,360.70/7,397.72 = 3,002.70/x
  3. Step 3: Cross multiply
    5,360.70x = 7,397.72 × 3,002.70
  4. Step 4: Simplify right side
    5,360.70x = 22,213,133.84
  5. Step 5: Solve for x
    x = 22,213,133.84/5,360.70
  6. Step 6: Final answer
    x = 4,143.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.