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Finding the Fourth Proportional to 16,486.61, 22,751.55 and 8,932.94

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Solution

The fourth proportional to 16,486.61, 22,751.55 and 8,932.94 is: 12,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,486.61 : 22,751.55 = 8,932.94 : x
  2. Step 2: Convert to fraction form
    16,486.61/22,751.55 = 8,932.94/x
  3. Step 3: Cross multiply
    16,486.61x = 22,751.55 × 8,932.94
  4. Step 4: Simplify right side
    16,486.61x = 203,238,231.06
  5. Step 5: Solve for x
    x = 203,238,231.06/16,486.61
  6. Step 6: Final answer
    x = 12,327.47

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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.