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Finding the Fourth Proportional to 35,702.84, 53,517.11 and 11,992.79

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Solution

The fourth proportional to 35,702.84, 53,517.11 and 11,992.79 is: 17,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,702.84 : 53,517.11 = 11,992.79 : x
  2. Step 2: Convert to fraction form
    35,702.84/53,517.11 = 11,992.79/x
  3. Step 3: Cross multiply
    35,702.84x = 53,517.11 × 11,992.79
  4. Step 4: Simplify right side
    35,702.84x = 641,819,134.09
  5. Step 5: Solve for x
    x = 641,819,134.09/35,702.84
  6. Step 6: Final answer
    x = 17,976.70

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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.