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Finding the Fourth Proportional to 65,915.46, 90,963.11 and 35,700.70

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Solution

The fourth proportional to 65,915.46, 90,963.11 and 35,700.70 is: 49,266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.46 : 90,963.11 = 35,700.70 : x
  2. Step 2: Convert to fraction form
    65,915.46/90,963.11 = 35,700.70/x
  3. Step 3: Cross multiply
    65,915.46x = 90,963.11 × 35,700.70
  4. Step 4: Simplify right side
    65,915.46x = 3,247,446,701.18
  5. Step 5: Solve for x
    x = 3,247,446,701.18/65,915.46
  6. Step 6: Final answer
    x = 49,266.84

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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.