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Finding the Fourth Proportional to 19,773.16, 27,205.86 and 19,221.16

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Solution

The fourth proportional to 19,773.16, 27,205.86 and 19,221.16 is: 26,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.16 : 27,205.86 = 19,221.16 : x
  2. Step 2: Convert to fraction form
    19,773.16/27,205.86 = 19,221.16/x
  3. Step 3: Cross multiply
    19,773.16x = 27,205.86 × 19,221.16
  4. Step 4: Simplify right side
    19,773.16x = 522,928,188.00
  5. Step 5: Solve for x
    x = 522,928,188.00/19,773.16
  6. Step 6: Final answer
    x = 26,446.36

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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.