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Finding the Fourth Proportional to 4,868.09, 6,713.82 and 4,115.54

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Solution

The fourth proportional to 4,868.09, 6,713.82 and 4,115.54 is: 5,675.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.09 : 6,713.82 = 4,115.54 : x
  2. Step 2: Convert to fraction form
    4,868.09/6,713.82 = 4,115.54/x
  3. Step 3: Cross multiply
    4,868.09x = 6,713.82 × 4,115.54
  4. Step 4: Simplify right side
    4,868.09x = 27,630,994.76
  5. Step 5: Solve for x
    x = 27,630,994.76/4,868.09
  6. Step 6: Final answer
    x = 5,675.94

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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.