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Finding the Fourth Proportional to 15,808.44, 23,725.97 and 7,908.59

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Solution

The fourth proportional to 15,808.44, 23,725.97 and 7,908.59 is: 11,869.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.44 : 23,725.97 = 7,908.59 : x
  2. Step 2: Convert to fraction form
    15,808.44/23,725.97 = 7,908.59/x
  3. Step 3: Cross multiply
    15,808.44x = 23,725.97 × 7,908.59
  4. Step 4: Simplify right side
    15,808.44x = 187,638,810.91
  5. Step 5: Solve for x
    x = 187,638,810.91/15,808.44
  6. Step 6: Final answer
    x = 11,869.53

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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.