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Finding the Fourth Proportional to 3,545.99, 4,893.46 and 1,974.45

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Solution

The fourth proportional to 3,545.99, 4,893.46 and 1,974.45 is: 2,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.99 : 4,893.46 = 1,974.45 : x
  2. Step 2: Convert to fraction form
    3,545.99/4,893.46 = 1,974.45/x
  3. Step 3: Cross multiply
    3,545.99x = 4,893.46 × 1,974.45
  4. Step 4: Simplify right side
    3,545.99x = 9,661,892.10
  5. Step 5: Solve for x
    x = 9,661,892.10/3,545.99
  6. Step 6: Final answer
    x = 2,724.74

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1.5x scale

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.