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Finding the Fourth Proportional to 61,745.54, 85,212.76 and 37,868.96

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Solution

The fourth proportional to 61,745.54, 85,212.76 and 37,868.96 is: 52,261.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.54 : 85,212.76 = 37,868.96 : x
  2. Step 2: Convert to fraction form
    61,745.54/85,212.76 = 37,868.96/x
  3. Step 3: Cross multiply
    61,745.54x = 85,212.76 × 37,868.96
  4. Step 4: Simplify right side
    61,745.54x = 3,226,918,079.19
  5. Step 5: Solve for x
    x = 3,226,918,079.19/61,745.54
  6. Step 6: Final answer
    x = 52,261.56

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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.