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Finding the Fourth Proportional to 61,312.30, 91,919.85 and 33,610.30

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Solution

The fourth proportional to 61,312.30, 91,919.85 and 33,610.30 is: 50,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.30 : 91,919.85 = 33,610.30 : x
  2. Step 2: Convert to fraction form
    61,312.30/91,919.85 = 33,610.30/x
  3. Step 3: Cross multiply
    61,312.30x = 91,919.85 × 33,610.30
  4. Step 4: Simplify right side
    61,312.30x = 3,089,453,734.46
  5. Step 5: Solve for x
    x = 3,089,453,734.46/61,312.30
  6. Step 6: Final answer
    x = 50,388.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.