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Finding the Fourth Proportional to 15,796.84, 21,799.61 and 9,083.76

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Solution

The fourth proportional to 15,796.84, 21,799.61 and 9,083.76 is: 12,535.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,796.84 : 21,799.61 = 9,083.76 : x
  2. Step 2: Convert to fraction form
    15,796.84/21,799.61 = 9,083.76/x
  3. Step 3: Cross multiply
    15,796.84x = 21,799.61 × 9,083.76
  4. Step 4: Simplify right side
    15,796.84x = 198,022,379.91
  5. Step 5: Solve for x
    x = 198,022,379.91/15,796.84
  6. Step 6: Final answer
    x = 12,535.57

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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.