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Finding the Fourth Proportional to 65,149.71, 89,906.58 and 35,341.71

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Solution

The fourth proportional to 65,149.71, 89,906.58 and 35,341.71 is: 48,771.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,149.71 : 89,906.58 = 35,341.71 : x
  2. Step 2: Convert to fraction form
    65,149.71/89,906.58 = 35,341.71/x
  3. Step 3: Cross multiply
    65,149.71x = 89,906.58 × 35,341.71
  4. Step 4: Simplify right side
    65,149.71x = 3,177,452,277.45
  5. Step 5: Solve for x
    x = 3,177,452,277.45/65,149.71
  6. Step 6: Final answer
    x = 48,771.55

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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.