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Finding the Fourth Proportional to 6,860.92, 10,291.38 and 1,666.76

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Solution

The fourth proportional to 6,860.92, 10,291.38 and 1,666.76 is: 2,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.92 : 10,291.38 = 1,666.76 : x
  2. Step 2: Convert to fraction form
    6,860.92/10,291.38 = 1,666.76/x
  3. Step 3: Cross multiply
    6,860.92x = 10,291.38 × 1,666.76
  4. Step 4: Simplify right side
    6,860.92x = 17,153,260.53
  5. Step 5: Solve for x
    x = 17,153,260.53/6,860.92
  6. Step 6: Final answer
    x = 2,500.14

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.