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Finding the Fourth Proportional to 34,878.39, 48,139.82 and 22,942.90

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Solution

The fourth proportional to 34,878.39, 48,139.82 and 22,942.90 is: 31,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,878.39 : 48,139.82 = 22,942.90 : x
  2. Step 2: Convert to fraction form
    34,878.39/48,139.82 = 22,942.90/x
  3. Step 3: Cross multiply
    34,878.39x = 48,139.82 × 22,942.90
  4. Step 4: Simplify right side
    34,878.39x = 1,104,467,076.28
  5. Step 5: Solve for x
    x = 1,104,467,076.28/34,878.39
  6. Step 6: Final answer
    x = 31,666.23

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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.