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Finding the Fourth Proportional to 8,566.78, 12,851.93 and 3,301.78

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Solution

The fourth proportional to 8,566.78, 12,851.93 and 3,301.78 is: 4,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,566.78 : 12,851.93 = 3,301.78 : x
  2. Step 2: Convert to fraction form
    8,566.78/12,851.93 = 3,301.78/x
  3. Step 3: Cross multiply
    8,566.78x = 12,851.93 × 3,301.78
  4. Step 4: Simplify right side
    8,566.78x = 42,434,245.44
  5. Step 5: Solve for x
    x = 42,434,245.44/8,566.78
  6. Step 6: Final answer
    x = 4,953.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.