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Finding the Fourth Proportional to 64,708.88, 89,283.44 and 36,404.24

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Solution

The fourth proportional to 64,708.88, 89,283.44 and 36,404.24 is: 50,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,708.88 : 89,283.44 = 36,404.24 : x
  2. Step 2: Convert to fraction form
    64,708.88/89,283.44 = 36,404.24/x
  3. Step 3: Cross multiply
    64,708.88x = 89,283.44 × 36,404.24
  4. Step 4: Simplify right side
    64,708.88x = 3,250,295,777.79
  5. Step 5: Solve for x
    x = 3,250,295,777.79/64,708.88
  6. Step 6: Final answer
    x = 50,229.52

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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.