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Finding the Fourth Proportional to 12,459.86, 17,194.39 and 6,794.65

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Solution

The fourth proportional to 12,459.86, 17,194.39 and 6,794.65 is: 9,376.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.86 : 17,194.39 = 6,794.65 : x
  2. Step 2: Convert to fraction form
    12,459.86/17,194.39 = 6,794.65/x
  3. Step 3: Cross multiply
    12,459.86x = 17,194.39 × 6,794.65
  4. Step 4: Simplify right side
    12,459.86x = 116,829,862.01
  5. Step 5: Solve for x
    x = 116,829,862.01/12,459.86
  6. Step 6: Final answer
    x = 9,376.50

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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.