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Finding the Fourth Proportional to 15,835.44, 21,853.44 and 8,761.44

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Solution

The fourth proportional to 15,835.44, 21,853.44 and 8,761.44 is: 12,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.44 : 21,853.44 = 8,761.44 : x
  2. Step 2: Convert to fraction form
    15,835.44/21,853.44 = 8,761.44/x
  3. Step 3: Cross multiply
    15,835.44x = 21,853.44 × 8,761.44
  4. Step 4: Simplify right side
    15,835.44x = 191,467,603.35
  5. Step 5: Solve for x
    x = 191,467,603.35/15,835.44
  6. Step 6: Final answer
    x = 12,091.08

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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.