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Finding the Fourth Proportional to 61,932.88, 85,467 and 33,638.32

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Solution

The fourth proportional to 61,932.88, 85,467 and 33,638.32 is: 46,420.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,932.88 : 85,467 = 33,638.32 : x
  2. Step 2: Convert to fraction form
    61,932.88/85,467 = 33,638.32/x
  3. Step 3: Cross multiply
    61,932.88x = 85,467 × 33,638.32
  4. Step 4: Simplify right side
    61,932.88x = 2,874,966,295.44
  5. Step 5: Solve for x
    x = 2,874,966,295.44/61,932.88
  6. Step 6: Final answer
    x = 46,420.68

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1.5x scale

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.