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Finding the Fourth Proportional to 61,787.66, 85,266.32 and 34,563.39

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Solution

The fourth proportional to 61,787.66, 85,266.32 and 34,563.39 is: 47,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,787.66 : 85,266.32 = 34,563.39 : x
  2. Step 2: Convert to fraction form
    61,787.66/85,266.32 = 34,563.39/x
  3. Step 3: Cross multiply
    61,787.66x = 85,266.32 × 34,563.39
  4. Step 4: Simplify right side
    61,787.66x = 2,947,092,709.07
  5. Step 5: Solve for x
    x = 2,947,092,709.07/61,787.66
  6. Step 6: Final answer
    x = 47,697.11

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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.