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Finding the Fourth Proportional to 61,962.75, 85,508.29 and 35,105.20

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Solution

The fourth proportional to 61,962.75, 85,508.29 and 35,105.20 is: 48,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,962.75 : 85,508.29 = 35,105.20 : x
  2. Step 2: Convert to fraction form
    61,962.75/85,508.29 = 35,105.20/x
  3. Step 3: Cross multiply
    61,962.75x = 85,508.29 × 35,105.20
  4. Step 4: Simplify right side
    61,962.75x = 3,001,785,622.11
  5. Step 5: Solve for x
    x = 3,001,785,622.11/61,962.75
  6. Step 6: Final answer
    x = 48,445.00

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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.