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Finding the Fourth Proportional to 22,753.80, 34,128.26 and 7,962.99

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Solution

The fourth proportional to 22,753.80, 34,128.26 and 7,962.99 is: 11,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,753.80 : 34,128.26 = 7,962.99 : x
  2. Step 2: Convert to fraction form
    22,753.80/34,128.26 = 7,962.99/x
  3. Step 3: Cross multiply
    22,753.80x = 34,128.26 × 7,962.99
  4. Step 4: Simplify right side
    22,753.80x = 271,762,953.28
  5. Step 5: Solve for x
    x = 271,762,953.28/22,753.80
  6. Step 6: Final answer
    x = 11,943.63

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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.