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Finding the Fourth Proportional to 20,058.68, 27,684.24 and 19,172.82

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Solution

The fourth proportional to 20,058.68, 27,684.24 and 19,172.82 is: 26,461.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,058.68 : 27,684.24 = 19,172.82 : x
  2. Step 2: Convert to fraction form
    20,058.68/27,684.24 = 19,172.82/x
  3. Step 3: Cross multiply
    20,058.68x = 27,684.24 × 19,172.82
  4. Step 4: Simplify right side
    20,058.68x = 530,784,950.36
  5. Step 5: Solve for x
    x = 530,784,950.36/20,058.68
  6. Step 6: Final answer
    x = 26,461.61

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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.