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Finding the Fourth Proportional to 4,607.72, 6,358.74 and 2,839.22

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Solution

The fourth proportional to 4,607.72, 6,358.74 and 2,839.22 is: 3,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,607.72 : 6,358.74 = 2,839.22 : x
  2. Step 2: Convert to fraction form
    4,607.72/6,358.74 = 2,839.22/x
  3. Step 3: Cross multiply
    4,607.72x = 6,358.74 × 2,839.22
  4. Step 4: Simplify right side
    4,607.72x = 18,053,861.78
  5. Step 5: Solve for x
    x = 18,053,861.78/4,607.72
  6. Step 6: Final answer
    x = 3,918.18

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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.