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Finding the Fourth Proportional to 39,415.68, 54,388.26 and 22,648.68

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Solution

The fourth proportional to 39,415.68, 54,388.26 and 22,648.68 is: 31,252.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,415.68 : 54,388.26 = 22,648.68 : x
  2. Step 2: Convert to fraction form
    39,415.68/54,388.26 = 22,648.68/x
  3. Step 3: Cross multiply
    39,415.68x = 54,388.26 × 22,648.68
  4. Step 4: Simplify right side
    39,415.68x = 1,231,822,296.50
  5. Step 5: Solve for x
    x = 1,231,822,296.50/39,415.68
  6. Step 6: Final answer
    x = 31,252.09

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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.