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Finding the Fourth Proportional to 2,170.41, 3,253.32 and 709.17

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Solution

The fourth proportional to 2,170.41, 3,253.32 and 709.17 is: 1,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.41 : 3,253.32 = 709.17 : x
  2. Step 2: Convert to fraction form
    2,170.41/3,253.32 = 709.17/x
  3. Step 3: Cross multiply
    2,170.41x = 3,253.32 × 709.17
  4. Step 4: Simplify right side
    2,170.41x = 2,307,156.94
  5. Step 5: Solve for x
    x = 2,307,156.94/2,170.41
  6. Step 6: Final answer
    x = 1,063.01

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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.