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Finding the Fourth Proportional to 36,610.31, 54,915.47 and 8,908.31

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Solution

The fourth proportional to 36,610.31, 54,915.47 and 8,908.31 is: 13,362.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,610.31 : 54,915.47 = 8,908.31 : x
  2. Step 2: Convert to fraction form
    36,610.31/54,915.47 = 8,908.31/x
  3. Step 3: Cross multiply
    36,610.31x = 54,915.47 × 8,908.31
  4. Step 4: Simplify right side
    36,610.31x = 489,204,156.71
  5. Step 5: Solve for x
    x = 489,204,156.71/36,610.31
  6. Step 6: Final answer
    x = 13,362.47

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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.