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Finding the Fourth Proportional to 19,773.66, 27,278.22 and 12,217.26

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Solution

The fourth proportional to 19,773.66, 27,278.22 and 12,217.26 is: 16,853.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.66 : 27,278.22 = 12,217.26 : x
  2. Step 2: Convert to fraction form
    19,773.66/27,278.22 = 12,217.26/x
  3. Step 3: Cross multiply
    19,773.66x = 27,278.22 × 12,217.26
  4. Step 4: Simplify right side
    19,773.66x = 333,265,106.08
  5. Step 5: Solve for x
    x = 333,265,106.08/19,773.66
  6. Step 6: Final answer
    x = 16,853.99

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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.