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Finding the Fourth Proportional to 12,899.86, 17,805.49 and 7,597.73

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Solution

The fourth proportional to 12,899.86, 17,805.49 and 7,597.73 is: 10,487.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.86 : 17,805.49 = 7,597.73 : x
  2. Step 2: Convert to fraction form
    12,899.86/17,805.49 = 7,597.73/x
  3. Step 3: Cross multiply
    12,899.86x = 17,805.49 × 7,597.73
  4. Step 4: Simplify right side
    12,899.86x = 135,281,331.06
  5. Step 5: Solve for x
    x = 135,281,331.06/12,899.86
  6. Step 6: Final answer
    x = 10,487.04

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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.