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Finding the Fourth Proportional to 8,963.65, 13,377.68 and 8,730.37

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Solution

The fourth proportional to 8,963.65, 13,377.68 and 8,730.37 is: 13,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,963.65 : 13,377.68 = 8,730.37 : x
  2. Step 2: Convert to fraction form
    8,963.65/13,377.68 = 8,730.37/x
  3. Step 3: Cross multiply
    8,963.65x = 13,377.68 × 8,730.37
  4. Step 4: Simplify right side
    8,963.65x = 116,792,096.14
  5. Step 5: Solve for x
    x = 116,792,096.14/8,963.65
  6. Step 6: Final answer
    x = 13,029.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.