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Finding the Fourth Proportional to 8,963.33, 12,369.20 and 4,929.97

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Solution

The fourth proportional to 8,963.33, 12,369.20 and 4,929.97 is: 6,803.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.33 : 12,369.20 = 4,929.97 : x
  2. Step 2: Convert to fraction form
    8,963.33/12,369.20 = 4,929.97/x
  3. Step 3: Cross multiply
    8,963.33x = 12,369.20 × 4,929.97
  4. Step 4: Simplify right side
    8,963.33x = 60,979,729.35
  5. Step 5: Solve for x
    x = 60,979,729.35/8,963.33
  6. Step 6: Final answer
    x = 6,803.25

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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.