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Finding the Fourth Proportional to 19,522.79, 26,923.01 and 12,814.23

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Solution

The fourth proportional to 19,522.79, 26,923.01 and 12,814.23 is: 17,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,522.79 : 26,923.01 = 12,814.23 : x
  2. Step 2: Convert to fraction form
    19,522.79/26,923.01 = 12,814.23/x
  3. Step 3: Cross multiply
    19,522.79x = 26,923.01 × 12,814.23
  4. Step 4: Simplify right side
    19,522.79x = 344,997,578.36
  5. Step 5: Solve for x
    x = 344,997,578.36/19,522.79
  6. Step 6: Final answer
    x = 17,671.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.