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Finding the Fourth Proportional to 10,763.53, 16,115.22 and 5,815.44

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Solution

The fourth proportional to 10,763.53, 16,115.22 and 5,815.44 is: 8,706.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,763.53 : 16,115.22 = 5,815.44 : x
  2. Step 2: Convert to fraction form
    10,763.53/16,115.22 = 5,815.44/x
  3. Step 3: Cross multiply
    10,763.53x = 16,115.22 × 5,815.44
  4. Step 4: Simplify right side
    10,763.53x = 93,717,095.00
  5. Step 5: Solve for x
    x = 93,717,095.00/10,763.53
  6. Step 6: Final answer
    x = 8,706.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.