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Finding the Fourth Proportional to 65,726.56, 90,702.06 and 37,055.41

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Solution

The fourth proportional to 65,726.56, 90,702.06 and 37,055.41 is: 51,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,726.56 : 90,702.06 = 37,055.41 : x
  2. Step 2: Convert to fraction form
    65,726.56/90,702.06 = 37,055.41/x
  3. Step 3: Cross multiply
    65,726.56x = 90,702.06 × 37,055.41
  4. Step 4: Simplify right side
    65,726.56x = 3,361,002,021.14
  5. Step 5: Solve for x
    x = 3,361,002,021.14/65,726.56
  6. Step 6: Final answer
    x = 51,136.13

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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.