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Finding the Fourth Proportional to 65,735.73, 90,726.71 and 63,548.73

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Solution

The fourth proportional to 65,735.73, 90,726.71 and 63,548.73 is: 87,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,735.73 : 90,726.71 = 63,548.73 : x
  2. Step 2: Convert to fraction form
    65,735.73/90,726.71 = 63,548.73/x
  3. Step 3: Cross multiply
    65,735.73x = 90,726.71 × 63,548.73
  4. Step 4: Simplify right side
    65,735.73x = 5,765,566,879.83
  5. Step 5: Solve for x
    x = 5,765,566,879.83/65,735.73
  6. Step 6: Final answer
    x = 87,708.27

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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.