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Finding the Fourth Proportional to 12,458.91, 17,192.79 and 6,793.53

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Solution

The fourth proportional to 12,458.91, 17,192.79 and 6,793.53 is: 9,374.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,458.91 : 17,192.79 = 6,793.53 : x
  2. Step 2: Convert to fraction form
    12,458.91/17,192.79 = 6,793.53/x
  3. Step 3: Cross multiply
    12,458.91x = 17,192.79 × 6,793.53
  4. Step 4: Simplify right side
    12,458.91x = 116,799,734.65
  5. Step 5: Solve for x
    x = 116,799,734.65/12,458.91
  6. Step 6: Final answer
    x = 9,374.80

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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.