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Finding the Fourth Proportional to 9,866.08, 14,799.36 and 3,289.60

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Solution

The fourth proportional to 9,866.08, 14,799.36 and 3,289.60 is: 4,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.08 : 14,799.36 = 3,289.60 : x
  2. Step 2: Convert to fraction form
    9,866.08/14,799.36 = 3,289.60/x
  3. Step 3: Cross multiply
    9,866.08x = 14,799.36 × 3,289.60
  4. Step 4: Simplify right side
    9,866.08x = 48,683,974.66
  5. Step 5: Solve for x
    x = 48,683,974.66/9,866.08
  6. Step 6: Final answer
    x = 4,934.48

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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.