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Finding the Fourth Proportional to 39,141, 54,014.60 and 22,374.36

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Solution

The fourth proportional to 39,141, 54,014.60 and 22,374.36 is: 30,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141 : 54,014.60 = 22,374.36 : x
  2. Step 2: Convert to fraction form
    39,141/54,014.60 = 22,374.36/x
  3. Step 3: Cross multiply
    39,141x = 54,014.60 × 22,374.36
  4. Step 4: Simplify right side
    39,141x = 1,208,542,105.66
  5. Step 5: Solve for x
    x = 1,208,542,105.66/39,141
  6. Step 6: Final answer
    x = 30,876.63

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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.