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Finding the Fourth Proportional to 3,710.76, 5,566.76 and 1,761.90

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Solution

The fourth proportional to 3,710.76, 5,566.76 and 1,761.90 is: 2,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.76 : 5,566.76 = 1,761.90 : x
  2. Step 2: Convert to fraction form
    3,710.76/5,566.76 = 1,761.90/x
  3. Step 3: Cross multiply
    3,710.76x = 5,566.76 × 1,761.90
  4. Step 4: Simplify right side
    3,710.76x = 9,808,074.44
  5. Step 5: Solve for x
    x = 9,808,074.44/3,710.76
  6. Step 6: Final answer
    x = 2,643.14

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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.