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Finding the Fourth Proportional to 1,874.67, 2,587.05 and 1,035.38

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Solution

The fourth proportional to 1,874.67, 2,587.05 and 1,035.38 is: 1,428.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,874.67 : 2,587.05 = 1,035.38 : x
  2. Step 2: Convert to fraction form
    1,874.67/2,587.05 = 1,035.38/x
  3. Step 3: Cross multiply
    1,874.67x = 2,587.05 × 1,035.38
  4. Step 4: Simplify right side
    1,874.67x = 2,678,579.83
  5. Step 5: Solve for x
    x = 2,678,579.83/1,874.67
  6. Step 6: Final answer
    x = 1,428.83

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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.