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Finding the Fourth Proportional to 8,836.40, 13,254.60 and 8,836.40

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Solution

The fourth proportional to 8,836.40, 13,254.60 and 8,836.40 is: 13,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.40 : 13,254.60 = 8,836.40 : x
  2. Step 2: Convert to fraction form
    8,836.40/13,254.60 = 8,836.40/x
  3. Step 3: Cross multiply
    8,836.40x = 13,254.60 × 8,836.40
  4. Step 4: Simplify right side
    8,836.40x = 117,122,947.44
  5. Step 5: Solve for x
    x = 117,122,947.44/8,836.40
  6. Step 6: Final answer
    x = 13,254.60

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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.