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Finding the Fourth Proportional to 65,391.44, 90,237.84 and 37,102.64

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Solution

The fourth proportional to 65,391.44, 90,237.84 and 37,102.64 is: 51,200.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,391.44 : 90,237.84 = 37,102.64 : x
  2. Step 2: Convert to fraction form
    65,391.44/90,237.84 = 37,102.64/x
  3. Step 3: Cross multiply
    65,391.44x = 90,237.84 × 37,102.64
  4. Step 4: Simplify right side
    65,391.44x = 3,348,062,091.90
  5. Step 5: Solve for x
    x = 3,348,062,091.90/65,391.44
  6. Step 6: Final answer
    x = 51,200.31

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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.