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Finding the Fourth Proportional to 65,333.97, 90,197.82 and 49,991.67

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Solution

The fourth proportional to 65,333.97, 90,197.82 and 49,991.67 is: 69,016.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,333.97 : 90,197.82 = 49,991.67 : x
  2. Step 2: Convert to fraction form
    65,333.97/90,197.82 = 49,991.67/x
  3. Step 3: Cross multiply
    65,333.97x = 90,197.82 × 49,991.67
  4. Step 4: Simplify right side
    65,333.97x = 4,509,139,652.16
  5. Step 5: Solve for x
    x = 4,509,139,652.16/65,333.97
  6. Step 6: Final answer
    x = 69,016.77

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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.