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Finding the Fourth Proportional to 66,224.48, 91,388.48 and 36,009.54

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Solution

The fourth proportional to 66,224.48, 91,388.48 and 36,009.54 is: 49,692.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,224.48 : 91,388.48 = 36,009.54 : x
  2. Step 2: Convert to fraction form
    66,224.48/91,388.48 = 36,009.54/x
  3. Step 3: Cross multiply
    66,224.48x = 91,388.48 × 36,009.54
  4. Step 4: Simplify right side
    66,224.48x = 3,290,856,946.05
  5. Step 5: Solve for x
    x = 3,290,856,946.05/66,224.48
  6. Step 6: Final answer
    x = 49,692.46

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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.