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Finding the Fourth Proportional to 8,963.44, 12,368.36 and 4,983.76

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Solution

The fourth proportional to 8,963.44, 12,368.36 and 4,983.76 is: 6,876.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.44 : 12,368.36 = 4,983.76 : x
  2. Step 2: Convert to fraction form
    8,963.44/12,368.36 = 4,983.76/x
  3. Step 3: Cross multiply
    8,963.44x = 12,368.36 × 4,983.76
  4. Step 4: Simplify right side
    8,963.44x = 61,640,937.83
  5. Step 5: Solve for x
    x = 61,640,937.83/8,963.44
  6. Step 6: Final answer
    x = 6,876.93

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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.