Home / 65,649.06-90,602.37-38,800.26

Finding the Fourth Proportional to 65,649.06, 90,602.37 and 38,800.26

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Solution

The fourth proportional to 65,649.06, 90,602.37 and 38,800.26 is: 53,548.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,649.06 : 90,602.37 = 38,800.26 : x
  2. Step 2: Convert to fraction form
    65,649.06/90,602.37 = 38,800.26/x
  3. Step 3: Cross multiply
    65,649.06x = 90,602.37 × 38,800.26
  4. Step 4: Simplify right side
    65,649.06x = 3,515,395,512.62
  5. Step 5: Solve for x
    x = 3,515,395,512.62/65,649.06
  6. Step 6: Final answer
    x = 53,548.30

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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.