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Finding the Fourth Proportional to 3,132.99, 4,322.61 and 1,856.61

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Solution

The fourth proportional to 3,132.99, 4,322.61 and 1,856.61 is: 2,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.99 : 4,322.61 = 1,856.61 : x
  2. Step 2: Convert to fraction form
    3,132.99/4,322.61 = 1,856.61/x
  3. Step 3: Cross multiply
    3,132.99x = 4,322.61 × 1,856.61
  4. Step 4: Simplify right side
    3,132.99x = 8,025,400.95
  5. Step 5: Solve for x
    x = 8,025,400.95/3,132.99
  6. Step 6: Final answer
    x = 2,561.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.