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Finding the Fourth Proportional to 65,726.91, 90,703.13 and 37,435.23

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Solution

The fourth proportional to 65,726.91, 90,703.13 and 37,435.23 is: 51,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,726.91 : 90,703.13 = 37,435.23 : x
  2. Step 2: Convert to fraction form
    65,726.91/90,703.13 = 37,435.23/x
  3. Step 3: Cross multiply
    65,726.91x = 90,703.13 × 37,435.23
  4. Step 4: Simplify right side
    65,726.91x = 3,395,492,286.72
  5. Step 5: Solve for x
    x = 3,395,492,286.72/65,726.91
  6. Step 6: Final answer
    x = 51,660.61

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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.