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Finding the Fourth Proportional to 11,763.65, 17,640.29 and 5,525.43

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Solution

The fourth proportional to 11,763.65, 17,640.29 and 5,525.43 is: 8,285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,763.65 : 17,640.29 = 5,525.43 : x
  2. Step 2: Convert to fraction form
    11,763.65/17,640.29 = 5,525.43/x
  3. Step 3: Cross multiply
    11,763.65x = 17,640.29 × 5,525.43
  4. Step 4: Simplify right side
    11,763.65x = 97,470,159.95
  5. Step 5: Solve for x
    x = 97,470,159.95/11,763.65
  6. Step 6: Final answer
    x = 8,285.71

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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.