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Finding the Fourth Proportional to 61,948.36, 85,493.94 and 35,099.40

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Solution

The fourth proportional to 61,948.36, 85,493.94 and 35,099.40 is: 48,440.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,948.36 : 85,493.94 = 35,099.40 : x
  2. Step 2: Convert to fraction form
    61,948.36/85,493.94 = 35,099.40/x
  3. Step 3: Cross multiply
    61,948.36x = 85,493.94 × 35,099.40
  4. Step 4: Simplify right side
    61,948.36x = 3,000,785,997.64
  5. Step 5: Solve for x
    x = 3,000,785,997.64/61,948.36
  6. Step 6: Final answer
    x = 48,440.12

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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.