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Finding the Fourth Proportional to 39,169.56, 54,053.94 and 22,402.56

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Solution

The fourth proportional to 39,169.56, 54,053.94 and 22,402.56 is: 30,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,169.56 : 54,053.94 = 22,402.56 : x
  2. Step 2: Convert to fraction form
    39,169.56/54,053.94 = 22,402.56/x
  3. Step 3: Cross multiply
    39,169.56x = 54,053.94 × 22,402.56
  4. Step 4: Simplify right side
    39,169.56x = 1,210,946,634.09
  5. Step 5: Solve for x
    x = 1,210,946,634.09/39,169.56
  6. Step 6: Final answer
    x = 30,915.50

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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.