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Finding the Fourth Proportional to 2,374.97, 3,563.10 and 988.95

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Solution

The fourth proportional to 2,374.97, 3,563.10 and 988.95 is: 1,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,374.97 : 3,563.10 = 988.95 : x
  2. Step 2: Convert to fraction form
    2,374.97/3,563.10 = 988.95/x
  3. Step 3: Cross multiply
    2,374.97x = 3,563.10 × 988.95
  4. Step 4: Simplify right side
    2,374.97x = 3,523,727.75
  5. Step 5: Solve for x
    x = 3,523,727.75/2,374.97
  6. Step 6: Final answer
    x = 1,483.70

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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.