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Finding the Fourth Proportional to 2,897.88, 4,343.04 and 1,165.56

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Solution

The fourth proportional to 2,897.88, 4,343.04 and 1,165.56 is: 1,746.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.88 : 4,343.04 = 1,165.56 : x
  2. Step 2: Convert to fraction form
    2,897.88/4,343.04 = 1,165.56/x
  3. Step 3: Cross multiply
    2,897.88x = 4,343.04 × 1,165.56
  4. Step 4: Simplify right side
    2,897.88x = 5,062,073.70
  5. Step 5: Solve for x
    x = 5,062,073.70/2,897.88
  6. Step 6: Final answer
    x = 1,746.82

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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.