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Finding the Fourth Proportional to 65,143.44, 89,892.99 and 36,850.95

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Solution

The fourth proportional to 65,143.44, 89,892.99 and 36,850.95 is: 50,851.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,143.44 : 89,892.99 = 36,850.95 : x
  2. Step 2: Convert to fraction form
    65,143.44/89,892.99 = 36,850.95/x
  3. Step 3: Cross multiply
    65,143.44x = 89,892.99 × 36,850.95
  4. Step 4: Simplify right side
    65,143.44x = 3,312,642,079.84
  5. Step 5: Solve for x
    x = 3,312,642,079.84/65,143.44
  6. Step 6: Final answer
    x = 50,851.51

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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.