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Finding the Fourth Proportional to 65,182.12, 89,955.78 and 36,887.80

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Solution

The fourth proportional to 65,182.12, 89,955.78 and 36,887.80 is: 50,907.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,182.12 : 89,955.78 = 36,887.80 : x
  2. Step 2: Convert to fraction form
    65,182.12/89,955.78 = 36,887.80/x
  3. Step 3: Cross multiply
    65,182.12x = 89,955.78 × 36,887.80
  4. Step 4: Simplify right side
    65,182.12x = 3,318,270,821.48
  5. Step 5: Solve for x
    x = 3,318,270,821.48/65,182.12
  6. Step 6: Final answer
    x = 50,907.68

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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.