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Finding the Fourth Proportional to 65,114.28, 89,866.04 and 36,435.60

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Solution

The fourth proportional to 65,114.28, 89,866.04 and 36,435.60 is: 50,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,114.28 : 89,866.04 = 36,435.60 : x
  2. Step 2: Convert to fraction form
    65,114.28/89,866.04 = 36,435.60/x
  3. Step 3: Cross multiply
    65,114.28x = 89,866.04 × 36,435.60
  4. Step 4: Simplify right side
    65,114.28x = 3,274,323,087.02
  5. Step 5: Solve for x
    x = 3,274,323,087.02/65,114.28
  6. Step 6: Final answer
    x = 50,285.79

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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.