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Finding the Fourth Proportional to 65,003.68, 89,705.08 and 36,711.18

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Solution

The fourth proportional to 65,003.68, 89,705.08 and 36,711.18 is: 50,661.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,003.68 : 89,705.08 = 36,711.18 : x
  2. Step 2: Convert to fraction form
    65,003.68/89,705.08 = 36,711.18/x
  3. Step 3: Cross multiply
    65,003.68x = 89,705.08 × 36,711.18
  4. Step 4: Simplify right side
    65,003.68x = 3,293,179,338.79
  5. Step 5: Solve for x
    x = 3,293,179,338.79/65,003.68
  6. Step 6: Final answer
    x = 50,661.43

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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.