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Finding the Fourth Proportional to 61,661.10, 85,096.17 and 34,808.16

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Solution

The fourth proportional to 61,661.10, 85,096.17 and 34,808.16 is: 48,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,661.10 : 85,096.17 = 34,808.16 : x
  2. Step 2: Convert to fraction form
    61,661.10/85,096.17 = 34,808.16/x
  3. Step 3: Cross multiply
    61,661.10x = 85,096.17 × 34,808.16
  4. Step 4: Simplify right side
    61,661.10x = 2,962,040,701.86
  5. Step 5: Solve for x
    x = 2,962,040,701.86/61,661.10
  6. Step 6: Final answer
    x = 48,037.43

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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.