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Finding the Fourth Proportional to 64,644.56, 89,261.16 and 41,994.80

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Solution

The fourth proportional to 64,644.56, 89,261.16 and 41,994.80 is: 57,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,644.56 : 89,261.16 = 41,994.80 : x
  2. Step 2: Convert to fraction form
    64,644.56/89,261.16 = 41,994.80/x
  3. Step 3: Cross multiply
    64,644.56x = 89,261.16 × 41,994.80
  4. Step 4: Simplify right side
    64,644.56x = 3,748,504,561.97
  5. Step 5: Solve for x
    x = 3,748,504,561.97/64,644.56
  6. Step 6: Final answer
    x = 57,986.39

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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.