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Finding the Fourth Proportional to 65,772.48, 90,768.48 and 37,477.44

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Solution

The fourth proportional to 65,772.48, 90,768.48 and 37,477.44 is: 51,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,772.48 : 90,768.48 = 37,477.44 : x
  2. Step 2: Convert to fraction form
    65,772.48/90,768.48 = 37,477.44/x
  3. Step 3: Cross multiply
    65,772.48x = 90,768.48 × 37,477.44
  4. Step 4: Simplify right side
    65,772.48x = 3,401,770,263.09
  5. Step 5: Solve for x
    x = 3,401,770,263.09/65,772.48
  6. Step 6: Final answer
    x = 51,720.27

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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.