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Finding the Fourth Proportional to 2,360.86, 3,539.74 and 1,322.40

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Solution

The fourth proportional to 2,360.86, 3,539.74 and 1,322.40 is: 1,982.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,360.86 : 3,539.74 = 1,322.40 : x
  2. Step 2: Convert to fraction form
    2,360.86/3,539.74 = 1,322.40/x
  3. Step 3: Cross multiply
    2,360.86x = 3,539.74 × 1,322.40
  4. Step 4: Simplify right side
    2,360.86x = 4,680,952.18
  5. Step 5: Solve for x
    x = 4,680,952.18/2,360.86
  6. Step 6: Final answer
    x = 1,982.73

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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.