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Finding the Fourth Proportional to 61,745.96, 85,205.22 and 34,889.60

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Solution

The fourth proportional to 61,745.96, 85,205.22 and 34,889.60 is: 48,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,745.96 : 85,205.22 = 34,889.60 : x
  2. Step 2: Convert to fraction form
    61,745.96/85,205.22 = 34,889.60/x
  3. Step 3: Cross multiply
    61,745.96x = 85,205.22 × 34,889.60
  4. Step 4: Simplify right side
    61,745.96x = 2,972,776,043.71
  5. Step 5: Solve for x
    x = 2,972,776,043.71/61,745.96
  6. Step 6: Final answer
    x = 48,145.27

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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.