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Finding the Fourth Proportional to 4,888.86, 6,747.85 and 3,212.54

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Solution

The fourth proportional to 4,888.86, 6,747.85 and 3,212.54 is: 4,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,888.86 : 6,747.85 = 3,212.54 : x
  2. Step 2: Convert to fraction form
    4,888.86/6,747.85 = 3,212.54/x
  3. Step 3: Cross multiply
    4,888.86x = 6,747.85 × 3,212.54
  4. Step 4: Simplify right side
    4,888.86x = 21,677,762.54
  5. Step 5: Solve for x
    x = 21,677,762.54/4,888.86
  6. Step 6: Final answer
    x = 4,434.11

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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.