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Finding the Fourth Proportional to 8,866.55, 13,301.04 and 3,936.08

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Solution

The fourth proportional to 8,866.55, 13,301.04 and 3,936.08 is: 5,904.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.55 : 13,301.04 = 3,936.08 : x
  2. Step 2: Convert to fraction form
    8,866.55/13,301.04 = 3,936.08/x
  3. Step 3: Cross multiply
    8,866.55x = 13,301.04 × 3,936.08
  4. Step 4: Simplify right side
    8,866.55x = 52,353,871.34
  5. Step 5: Solve for x
    x = 52,353,871.34/8,866.55
  6. Step 6: Final answer
    x = 5,904.65

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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.