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Finding the Fourth Proportional to 15,943.98, 23,915.97 and 7,168.62

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Solution

The fourth proportional to 15,943.98, 23,915.97 and 7,168.62 is: 10,752.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.98 : 23,915.97 = 7,168.62 : x
  2. Step 2: Convert to fraction form
    15,943.98/23,915.97 = 7,168.62/x
  3. Step 3: Cross multiply
    15,943.98x = 23,915.97 × 7,168.62
  4. Step 4: Simplify right side
    15,943.98x = 171,444,500.86
  5. Step 5: Solve for x
    x = 171,444,500.86/15,943.98
  6. Step 6: Final answer
    x = 10,752.93

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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.