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Finding the Fourth Proportional to 17,953.67, 26,931.83 and 5,474.76

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Solution

The fourth proportional to 17,953.67, 26,931.83 and 5,474.76 is: 8,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,953.67 : 26,931.83 = 5,474.76 : x
  2. Step 2: Convert to fraction form
    17,953.67/26,931.83 = 5,474.76/x
  3. Step 3: Cross multiply
    17,953.67x = 26,931.83 × 5,474.76
  4. Step 4: Simplify right side
    17,953.67x = 147,445,278.24
  5. Step 5: Solve for x
    x = 147,445,278.24/17,953.67
  6. Step 6: Final answer
    x = 8,212.54

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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.