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Finding the Fourth Proportional to 65,005.84, 89,706.94 and 36,325.97

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Solution

The fourth proportional to 65,005.84, 89,706.94 and 36,325.97 is: 50,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,005.84 : 89,706.94 = 36,325.97 : x
  2. Step 2: Convert to fraction form
    65,005.84/89,706.94 = 36,325.97/x
  3. Step 3: Cross multiply
    65,005.84x = 89,706.94 × 36,325.97
  4. Step 4: Simplify right side
    65,005.84x = 3,258,691,611.23
  5. Step 5: Solve for x
    x = 3,258,691,611.23/65,005.84
  6. Step 6: Final answer
    x = 50,129.21

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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.