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Finding the Fourth Proportional to 35,135.78, 48,487.82 and 19,220.49

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Solution

The fourth proportional to 35,135.78, 48,487.82 and 19,220.49 is: 26,524.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,135.78 : 48,487.82 = 19,220.49 : x
  2. Step 2: Convert to fraction form
    35,135.78/48,487.82 = 19,220.49/x
  3. Step 3: Cross multiply
    35,135.78x = 48,487.82 × 19,220.49
  4. Step 4: Simplify right side
    35,135.78x = 931,959,563.33
  5. Step 5: Solve for x
    x = 931,959,563.33/35,135.78
  6. Step 6: Final answer
    x = 26,524.52

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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.