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Finding the Fourth Proportional to 19,701.98, 27,188.60 and 11,204.11

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Solution

The fourth proportional to 19,701.98, 27,188.60 and 11,204.11 is: 15,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.98 : 27,188.60 = 11,204.11 : x
  2. Step 2: Convert to fraction form
    19,701.98/27,188.60 = 11,204.11/x
  3. Step 3: Cross multiply
    19,701.98x = 27,188.60 × 11,204.11
  4. Step 4: Simplify right side
    19,701.98x = 304,624,025.18
  5. Step 5: Solve for x
    x = 304,624,025.18/19,701.98
  6. Step 6: Final answer
    x = 15,461.59

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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.