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Finding the Fourth Proportional to 4,778.46, 6,591.06 and 2,915.46

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Solution

The fourth proportional to 4,778.46, 6,591.06 and 2,915.46 is: 4,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.46 : 6,591.06 = 2,915.46 : x
  2. Step 2: Convert to fraction form
    4,778.46/6,591.06 = 2,915.46/x
  3. Step 3: Cross multiply
    4,778.46x = 6,591.06 × 2,915.46
  4. Step 4: Simplify right side
    4,778.46x = 19,215,971.79
  5. Step 5: Solve for x
    x = 19,215,971.79/4,778.46
  6. Step 6: Final answer
    x = 4,021.37

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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.