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Finding the Fourth Proportional to 61,911.33, 85,435.99 and 35,056.45

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Solution

The fourth proportional to 61,911.33, 85,435.99 and 35,056.45 is: 48,376.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,911.33 : 85,435.99 = 35,056.45 : x
  2. Step 2: Convert to fraction form
    61,911.33/85,435.99 = 35,056.45/x
  3. Step 3: Cross multiply
    61,911.33x = 85,435.99 × 35,056.45
  4. Step 4: Simplify right side
    61,911.33x = 2,995,082,511.64
  5. Step 5: Solve for x
    x = 2,995,082,511.64/61,911.33
  6. Step 6: Final answer
    x = 48,376.97

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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.