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Finding the Fourth Proportional to 5,813.79, 8,717.95 and 2,113.44

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Solution

The fourth proportional to 5,813.79, 8,717.95 and 2,113.44 is: 3,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.79 : 8,717.95 = 2,113.44 : x
  2. Step 2: Convert to fraction form
    5,813.79/8,717.95 = 2,113.44/x
  3. Step 3: Cross multiply
    5,813.79x = 8,717.95 × 2,113.44
  4. Step 4: Simplify right side
    5,813.79x = 18,424,864.25
  5. Step 5: Solve for x
    x = 18,424,864.25/5,813.79
  6. Step 6: Final answer
    x = 3,169.17

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1.5x scale

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.