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Finding the Fourth Proportional to 10,610.42, 15,910.16 and 7,283.75

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Solution

The fourth proportional to 10,610.42, 15,910.16 and 7,283.75 is: 10,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,610.42 : 15,910.16 = 7,283.75 : x
  2. Step 2: Convert to fraction form
    10,610.42/15,910.16 = 7,283.75/x
  3. Step 3: Cross multiply
    10,610.42x = 15,910.16 × 7,283.75
  4. Step 4: Simplify right side
    10,610.42x = 115,885,511.93
  5. Step 5: Solve for x
    x = 115,885,511.93/10,610.42
  6. Step 6: Final answer
    x = 10,921.86

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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.