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Finding the Fourth Proportional to 17,908.70, 26,826.14 and 10,490.67

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Solution

The fourth proportional to 17,908.70, 26,826.14 and 10,490.67 is: 15,714.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.70 : 26,826.14 = 10,490.67 : x
  2. Step 2: Convert to fraction form
    17,908.70/26,826.14 = 10,490.67/x
  3. Step 3: Cross multiply
    17,908.70x = 26,826.14 × 10,490.67
  4. Step 4: Simplify right side
    17,908.70x = 281,424,129.66
  5. Step 5: Solve for x
    x = 281,424,129.66/17,908.70
  6. Step 6: Final answer
    x = 15,714.38

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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.