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Finding the Fourth Proportional to 3,125.56, 4,689.66 and 1,567

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Solution

The fourth proportional to 3,125.56, 4,689.66 and 1,567 is: 2,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.56 : 4,689.66 = 1,567 : x
  2. Step 2: Convert to fraction form
    3,125.56/4,689.66 = 1,567/x
  3. Step 3: Cross multiply
    3,125.56x = 4,689.66 × 1,567
  4. Step 4: Simplify right side
    3,125.56x = 7,348,697.22
  5. Step 5: Solve for x
    x = 7,348,697.22/3,125.56
  6. Step 6: Final answer
    x = 2,351.16

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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.