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Finding the Fourth Proportional to 17,623.40, 26,435.10 and 15,434.60

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Solution

The fourth proportional to 17,623.40, 26,435.10 and 15,434.60 is: 23,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,623.40 : 26,435.10 = 15,434.60 : x
  2. Step 2: Convert to fraction form
    17,623.40/26,435.10 = 15,434.60/x
  3. Step 3: Cross multiply
    17,623.40x = 26,435.10 × 15,434.60
  4. Step 4: Simplify right side
    17,623.40x = 408,015,194.46
  5. Step 5: Solve for x
    x = 408,015,194.46/17,623.40
  6. Step 6: Final answer
    x = 23,151.90

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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.