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Finding the Fourth Proportional to 19,693.94, 26,960.14 and 19,553.22

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Solution

The fourth proportional to 19,693.94, 26,960.14 and 19,553.22 is: 26,767.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.94 : 26,960.14 = 19,553.22 : x
  2. Step 2: Convert to fraction form
    19,693.94/26,960.14 = 19,553.22/x
  3. Step 3: Cross multiply
    19,693.94x = 26,960.14 × 19,553.22
  4. Step 4: Simplify right side
    19,693.94x = 527,157,648.92
  5. Step 5: Solve for x
    x = 527,157,648.92/19,693.94
  6. Step 6: Final answer
    x = 26,767.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.