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Finding the Fourth Proportional to 19,888.56, 27,446.93 and 10,936.76

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Solution

The fourth proportional to 19,888.56, 27,446.93 and 10,936.76 is: 15,093.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.56 : 27,446.93 = 10,936.76 : x
  2. Step 2: Convert to fraction form
    19,888.56/27,446.93 = 10,936.76/x
  3. Step 3: Cross multiply
    19,888.56x = 27,446.93 × 10,936.76
  4. Step 4: Simplify right side
    19,888.56x = 300,180,294.23
  5. Step 5: Solve for x
    x = 300,180,294.23/19,888.56
  6. Step 6: Final answer
    x = 15,093.11

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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.