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Finding the Fourth Proportional to 19,850.74, 27,394.48 and 10,898.88

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Solution

The fourth proportional to 19,850.74, 27,394.48 and 10,898.88 is: 15,040.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,850.74 : 27,394.48 = 10,898.88 : x
  2. Step 2: Convert to fraction form
    19,850.74/27,394.48 = 10,898.88/x
  3. Step 3: Cross multiply
    19,850.74x = 27,394.48 × 10,898.88
  4. Step 4: Simplify right side
    19,850.74x = 298,569,150.18
  5. Step 5: Solve for x
    x = 298,569,150.18/19,850.74
  6. Step 6: Final answer
    x = 15,040.71

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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.