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Finding the Fourth Proportional to 19,471.71, 26,871.07 and 10,973.97

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Solution

The fourth proportional to 19,471.71, 26,871.07 and 10,973.97 is: 15,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,471.71 : 26,871.07 = 10,973.97 : x
  2. Step 2: Convert to fraction form
    19,471.71/26,871.07 = 10,973.97/x
  3. Step 3: Cross multiply
    19,471.71x = 26,871.07 × 10,973.97
  4. Step 4: Simplify right side
    19,471.71x = 294,882,316.05
  5. Step 5: Solve for x
    x = 294,882,316.05/19,471.71
  6. Step 6: Final answer
    x = 15,144.14

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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.