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Finding the Fourth Proportional to 4,707.92, 7,061.78 and 2,520.92

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Solution

The fourth proportional to 4,707.92, 7,061.78 and 2,520.92 is: 3,781.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,707.92 : 7,061.78 = 2,520.92 : x
  2. Step 2: Convert to fraction form
    4,707.92/7,061.78 = 2,520.92/x
  3. Step 3: Cross multiply
    4,707.92x = 7,061.78 × 2,520.92
  4. Step 4: Simplify right side
    4,707.92x = 17,802,206.39
  5. Step 5: Solve for x
    x = 17,802,206.39/4,707.92
  6. Step 6: Final answer
    x = 3,781.33

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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.