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Finding the Fourth Proportional to 65,076.58, 89,798.28 and 36,782.20

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Solution

The fourth proportional to 65,076.58, 89,798.28 and 36,782.20 is: 50,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,076.58 : 89,798.28 = 36,782.20 : x
  2. Step 2: Convert to fraction form
    65,076.58/89,798.28 = 36,782.20/x
  3. Step 3: Cross multiply
    65,076.58x = 89,798.28 × 36,782.20
  4. Step 4: Simplify right side
    65,076.58x = 3,302,978,294.62
  5. Step 5: Solve for x
    x = 3,302,978,294.62/65,076.58
  6. Step 6: Final answer
    x = 50,755.25

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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.