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Finding the Fourth Proportional to 8,885.36, 12,262.60 and 5,348

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Solution

The fourth proportional to 8,885.36, 12,262.60 and 5,348 is: 7,380.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.36 : 12,262.60 = 5,348 : x
  2. Step 2: Convert to fraction form
    8,885.36/12,262.60 = 5,348/x
  3. Step 3: Cross multiply
    8,885.36x = 12,262.60 × 5,348
  4. Step 4: Simplify right side
    8,885.36x = 65,580,384.80
  5. Step 5: Solve for x
    x = 65,580,384.80/8,885.36
  6. Step 6: Final answer
    x = 7,380.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.