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Finding the Fourth Proportional to 17,906.97, 26,903.79 and 15,807.45

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Solution

The fourth proportional to 17,906.97, 26,903.79 and 15,807.45 is: 23,749.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,906.97 : 26,903.79 = 15,807.45 : x
  2. Step 2: Convert to fraction form
    17,906.97/26,903.79 = 15,807.45/x
  3. Step 3: Cross multiply
    17,906.97x = 26,903.79 × 15,807.45
  4. Step 4: Simplify right side
    17,906.97x = 425,280,315.24
  5. Step 5: Solve for x
    x = 425,280,315.24/17,906.97
  6. Step 6: Final answer
    x = 23,749.43

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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.