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Finding the Fourth Proportional to 5,987.79, 8,978.14 and 2,037.62

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Solution

The fourth proportional to 5,987.79, 8,978.14 and 2,037.62 is: 3,055.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,987.79 : 8,978.14 = 2,037.62 : x
  2. Step 2: Convert to fraction form
    5,987.79/8,978.14 = 2,037.62/x
  3. Step 3: Cross multiply
    5,987.79x = 8,978.14 × 2,037.62
  4. Step 4: Simplify right side
    5,987.79x = 18,294,062.62
  5. Step 5: Solve for x
    x = 18,294,062.62/5,987.79
  6. Step 6: Final answer
    x = 3,055.23

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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.