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Finding the Fourth Proportional to 3,488.01, 4,813.55 and 1,916.15

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Solution

The fourth proportional to 3,488.01, 4,813.55 and 1,916.15 is: 2,644.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.01 : 4,813.55 = 1,916.15 : x
  2. Step 2: Convert to fraction form
    3,488.01/4,813.55 = 1,916.15/x
  3. Step 3: Cross multiply
    3,488.01x = 4,813.55 × 1,916.15
  4. Step 4: Simplify right side
    3,488.01x = 9,223,450.18
  5. Step 5: Solve for x
    x = 9,223,450.18/3,488.01
  6. Step 6: Final answer
    x = 2,644.33

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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.