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Finding the Fourth Proportional to 38,825.71, 53,579.21 and 22,058.71

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Solution

The fourth proportional to 38,825.71, 53,579.21 and 22,058.71 is: 30,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,825.71 : 53,579.21 = 22,058.71 : x
  2. Step 2: Convert to fraction form
    38,825.71/53,579.21 = 22,058.71/x
  3. Step 3: Cross multiply
    38,825.71x = 53,579.21 × 22,058.71
  4. Step 4: Simplify right side
    38,825.71x = 1,181,888,255.42
  5. Step 5: Solve for x
    x = 1,181,888,255.42/38,825.71
  6. Step 6: Final answer
    x = 30,440.87

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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.