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Finding the Fourth Proportional to 2,088.87, 3,132.08 and 790.44

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Solution

The fourth proportional to 2,088.87, 3,132.08 and 790.44 is: 1,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.87 : 3,132.08 = 790.44 : x
  2. Step 2: Convert to fraction form
    2,088.87/3,132.08 = 790.44/x
  3. Step 3: Cross multiply
    2,088.87x = 3,132.08 × 790.44
  4. Step 4: Simplify right side
    2,088.87x = 2,475,708.58
  5. Step 5: Solve for x
    x = 2,475,708.58/2,088.87
  6. Step 6: Final answer
    x = 1,185.19

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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.