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Finding the Fourth Proportional to 17,006.78, 25,505.91 and 7,153.13

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Solution

The fourth proportional to 17,006.78, 25,505.91 and 7,153.13 is: 10,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,006.78 : 25,505.91 = 7,153.13 : x
  2. Step 2: Convert to fraction form
    17,006.78/25,505.91 = 7,153.13/x
  3. Step 3: Cross multiply
    17,006.78x = 25,505.91 × 7,153.13
  4. Step 4: Simplify right side
    17,006.78x = 182,446,962.47
  5. Step 5: Solve for x
    x = 182,446,962.47/17,006.78
  6. Step 6: Final answer
    x = 10,727.90

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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.