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Finding the Fourth Proportional to 17,155.19, 25,715.13 and 7,801.73

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Solution

The fourth proportional to 17,155.19, 25,715.13 and 7,801.73 is: 11,694.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,155.19 : 25,715.13 = 7,801.73 : x
  2. Step 2: Convert to fraction form
    17,155.19/25,715.13 = 7,801.73/x
  3. Step 3: Cross multiply
    17,155.19x = 25,715.13 × 7,801.73
  4. Step 4: Simplify right side
    17,155.19x = 200,622,501.17
  5. Step 5: Solve for x
    x = 200,622,501.17/17,155.19
  6. Step 6: Final answer
    x = 11,694.57

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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.