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Finding the Fourth Proportional to 83,894.40, 125,885.48 and 33,979.77

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Solution

The fourth proportional to 83,894.40, 125,885.48 and 33,979.77 is: 50,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,894.40 : 125,885.48 = 33,979.77 : x
  2. Step 2: Convert to fraction form
    83,894.40/125,885.48 = 33,979.77/x
  3. Step 3: Cross multiply
    83,894.40x = 125,885.48 × 33,979.77
  4. Step 4: Simplify right side
    83,894.40x = 4,277,559,486.84
  5. Step 5: Solve for x
    x = 4,277,559,486.84/83,894.40
  6. Step 6: Final answer
    x = 50,987.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.