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Finding the Fourth Proportional to 4,902.68, 6,767.88 and 2,913.88

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Solution

The fourth proportional to 4,902.68, 6,767.88 and 2,913.88 is: 4,022.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.68 : 6,767.88 = 2,913.88 : x
  2. Step 2: Convert to fraction form
    4,902.68/6,767.88 = 2,913.88/x
  3. Step 3: Cross multiply
    4,902.68x = 6,767.88 × 2,913.88
  4. Step 4: Simplify right side
    4,902.68x = 19,720,790.17
  5. Step 5: Solve for x
    x = 19,720,790.17/4,902.68
  6. Step 6: Final answer
    x = 4,022.45

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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.