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Finding the Fourth Proportional to 17,021.70, 25,544.70 and 9,618.30

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Solution

The fourth proportional to 17,021.70, 25,544.70 and 9,618.30 is: 14,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,021.70 : 25,544.70 = 9,618.30 : x
  2. Step 2: Convert to fraction form
    17,021.70/25,544.70 = 9,618.30/x
  3. Step 3: Cross multiply
    17,021.70x = 25,544.70 × 9,618.30
  4. Step 4: Simplify right side
    17,021.70x = 245,696,588.01
  5. Step 5: Solve for x
    x = 245,696,588.01/17,021.70
  6. Step 6: Final answer
    x = 14,434.32

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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.