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Finding the Fourth Proportional to 17,969.55, 26,921.46 and 13,026.93

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Solution

The fourth proportional to 17,969.55, 26,921.46 and 13,026.93 is: 19,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.55 : 26,921.46 = 13,026.93 : x
  2. Step 2: Convert to fraction form
    17,969.55/26,921.46 = 13,026.93/x
  3. Step 3: Cross multiply
    17,969.55x = 26,921.46 × 13,026.93
  4. Step 4: Simplify right side
    17,969.55x = 350,703,974.92
  5. Step 5: Solve for x
    x = 350,703,974.92/17,969.55
  6. Step 6: Final answer
    x = 19,516.57

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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.