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Finding the Fourth Proportional to 11,859.82, 16,366.54 and 6,554.74

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Solution

The fourth proportional to 11,859.82, 16,366.54 and 6,554.74 is: 9,045.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,859.82 : 16,366.54 = 6,554.74 : x
  2. Step 2: Convert to fraction form
    11,859.82/16,366.54 = 6,554.74/x
  3. Step 3: Cross multiply
    11,859.82x = 16,366.54 × 6,554.74
  4. Step 4: Simplify right side
    11,859.82x = 107,278,414.40
  5. Step 5: Solve for x
    x = 107,278,414.40/11,859.82
  6. Step 6: Final answer
    x = 9,045.53

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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.