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Finding the Fourth Proportional to 4,986.74, 6,881.72 and 2,997.34

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Solution

The fourth proportional to 4,986.74, 6,881.72 and 2,997.34 is: 4,136.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.74 : 6,881.72 = 2,997.34 : x
  2. Step 2: Convert to fraction form
    4,986.74/6,881.72 = 2,997.34/x
  3. Step 3: Cross multiply
    4,986.74x = 6,881.72 × 2,997.34
  4. Step 4: Simplify right side
    4,986.74x = 20,626,822.43
  5. Step 5: Solve for x
    x = 20,626,822.43/4,986.74
  6. Step 6: Final answer
    x = 4,136.33

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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.