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Finding the Fourth Proportional to 8,960.52, 12,365.36 and 4,981.60

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Solution

The fourth proportional to 8,960.52, 12,365.36 and 4,981.60 is: 6,874.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,960.52 : 12,365.36 = 4,981.60 : x
  2. Step 2: Convert to fraction form
    8,960.52/12,365.36 = 4,981.60/x
  3. Step 3: Cross multiply
    8,960.52x = 12,365.36 × 4,981.60
  4. Step 4: Simplify right side
    8,960.52x = 61,599,286.61
  5. Step 5: Solve for x
    x = 61,599,286.61/8,960.52
  6. Step 6: Final answer
    x = 6,874.52

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1.5x scale

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.