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Finding the Fourth Proportional to 8,886.56, 13,325.36 and 2,961.36

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Solution

The fourth proportional to 8,886.56, 13,325.36 and 2,961.36 is: 4,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.56 : 13,325.36 = 2,961.36 : x
  2. Step 2: Convert to fraction form
    8,886.56/13,325.36 = 2,961.36/x
  3. Step 3: Cross multiply
    8,886.56x = 13,325.36 × 2,961.36
  4. Step 4: Simplify right side
    8,886.56x = 39,461,173.28
  5. Step 5: Solve for x
    x = 39,461,173.28/8,886.56
  6. Step 6: Final answer
    x = 4,440.55

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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.