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Finding the Fourth Proportional to 38,893.90, 53,673.78 and 22,126.90

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Solution

The fourth proportional to 38,893.90, 53,673.78 and 22,126.90 is: 30,535.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,893.90 : 53,673.78 = 22,126.90 : x
  2. Step 2: Convert to fraction form
    38,893.90/53,673.78 = 22,126.90/x
  3. Step 3: Cross multiply
    38,893.90x = 53,673.78 × 22,126.90
  4. Step 4: Simplify right side
    38,893.90x = 1,187,634,362.68
  5. Step 5: Solve for x
    x = 1,187,634,362.68/38,893.90
  6. Step 6: Final answer
    x = 30,535.23

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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.