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Finding the Fourth Proportional to 4,888.42, 6,747.51 and 3,900.49

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Solution

The fourth proportional to 4,888.42, 6,747.51 and 3,900.49 is: 5,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.42 : 6,747.51 = 3,900.49 : x
  2. Step 2: Convert to fraction form
    4,888.42/6,747.51 = 3,900.49/x
  3. Step 3: Cross multiply
    4,888.42x = 6,747.51 × 3,900.49
  4. Step 4: Simplify right side
    4,888.42x = 26,318,595.28
  5. Step 5: Solve for x
    x = 26,318,595.28/4,888.42
  6. Step 6: Final answer
    x = 5,383.87

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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.