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Finding the Fourth Proportional to 55,017.78, 75,971.07 and 34,910.34

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Solution

The fourth proportional to 55,017.78, 75,971.07 and 34,910.34 is: 48,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,017.78 : 75,971.07 = 34,910.34 : x
  2. Step 2: Convert to fraction form
    55,017.78/75,971.07 = 34,910.34/x
  3. Step 3: Cross multiply
    55,017.78x = 75,971.07 × 34,910.34
  4. Step 4: Simplify right side
    55,017.78x = 2,652,175,883.86
  5. Step 5: Solve for x
    x = 2,652,175,883.86/55,017.78
  6. Step 6: Final answer
    x = 48,205.80

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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.