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Finding the Fourth Proportional to 41,690.41, 62,541.62 and 13,603.51

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Solution

The fourth proportional to 41,690.41, 62,541.62 and 13,603.51 is: 20,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,690.41 : 62,541.62 = 13,603.51 : x
  2. Step 2: Convert to fraction form
    41,690.41/62,541.62 = 13,603.51/x
  3. Step 3: Cross multiply
    41,690.41x = 62,541.62 × 13,603.51
  4. Step 4: Simplify right side
    41,690.41x = 850,785,614.26
  5. Step 5: Solve for x
    x = 850,785,614.26/41,690.41
  6. Step 6: Final answer
    x = 20,407.22

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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.