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Finding the Fourth Proportional to 8,401.78, 11,594.49 and 4,675.78

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Solution

The fourth proportional to 8,401.78, 11,594.49 and 4,675.78 is: 6,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.78 : 11,594.49 = 4,675.78 : x
  2. Step 2: Convert to fraction form
    8,401.78/11,594.49 = 4,675.78/x
  3. Step 3: Cross multiply
    8,401.78x = 11,594.49 × 4,675.78
  4. Step 4: Simplify right side
    8,401.78x = 54,213,284.45
  5. Step 5: Solve for x
    x = 54,213,284.45/8,401.78
  6. Step 6: Final answer
    x = 6,452.60

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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.