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Finding the Fourth Proportional to 4,806.79, 6,633.98 and 2,919.13

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Solution

The fourth proportional to 4,806.79, 6,633.98 and 2,919.13 is: 4,028.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,806.79 : 6,633.98 = 2,919.13 : x
  2. Step 2: Convert to fraction form
    4,806.79/6,633.98 = 2,919.13/x
  3. Step 3: Cross multiply
    4,806.79x = 6,633.98 × 2,919.13
  4. Step 4: Simplify right side
    4,806.79x = 19,365,440.75
  5. Step 5: Solve for x
    x = 19,365,440.75/4,806.79
  6. Step 6: Final answer
    x = 4,028.77

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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.