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Finding the Fourth Proportional to 2,891.85, 4,337.77 and 700.58

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Solution

The fourth proportional to 2,891.85, 4,337.77 and 700.58 is: 1,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.85 : 4,337.77 = 700.58 : x
  2. Step 2: Convert to fraction form
    2,891.85/4,337.77 = 700.58/x
  3. Step 3: Cross multiply
    2,891.85x = 4,337.77 × 700.58
  4. Step 4: Simplify right side
    2,891.85x = 3,038,944.06
  5. Step 5: Solve for x
    x = 3,038,944.06/2,891.85
  6. Step 6: Final answer
    x = 1,050.87

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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.