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Finding the Fourth Proportional to 12,932.99, 17,842.84 and 8,459.29

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Solution

The fourth proportional to 12,932.99, 17,842.84 and 8,459.29 is: 11,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,932.99 : 17,842.84 = 8,459.29 : x
  2. Step 2: Convert to fraction form
    12,932.99/17,842.84 = 8,459.29/x
  3. Step 3: Cross multiply
    12,932.99x = 17,842.84 × 8,459.29
  4. Step 4: Simplify right side
    12,932.99x = 150,937,757.98
  5. Step 5: Solve for x
    x = 150,937,757.98/12,932.99
  6. Step 6: Final answer
    x = 11,670.76

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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.