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Finding the Fourth Proportional to 3,766.61, 5,648.08 and 1,545.05

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Solution

The fourth proportional to 3,766.61, 5,648.08 and 1,545.05 is: 2,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766.61 : 5,648.08 = 1,545.05 : x
  2. Step 2: Convert to fraction form
    3,766.61/5,648.08 = 1,545.05/x
  3. Step 3: Cross multiply
    3,766.61x = 5,648.08 × 1,545.05
  4. Step 4: Simplify right side
    3,766.61x = 8,726,547.39
  5. Step 5: Solve for x
    x = 8,726,547.39/3,766.61
  6. Step 6: Final answer
    x = 2,316.82

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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.