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Finding the Fourth Proportional to 2,098.58, 2,899.80 and 1,508.10

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Solution

The fourth proportional to 2,098.58, 2,899.80 and 1,508.10 is: 2,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.58 : 2,899.80 = 1,508.10 : x
  2. Step 2: Convert to fraction form
    2,098.58/2,899.80 = 1,508.10/x
  3. Step 3: Cross multiply
    2,098.58x = 2,899.80 × 1,508.10
  4. Step 4: Simplify right side
    2,098.58x = 4,373,188.38
  5. Step 5: Solve for x
    x = 4,373,188.38/2,098.58
  6. Step 6: Final answer
    x = 2,083.88

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Why These Related Problems?

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