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Finding the Fourth Proportional to 57,611.64, 86,563.44 and 55,278.84

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Solution

The fourth proportional to 57,611.64, 86,563.44 and 55,278.84 is: 83,058.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,611.64 : 86,563.44 = 55,278.84 : x
  2. Step 2: Convert to fraction form
    57,611.64/86,563.44 = 55,278.84/x
  3. Step 3: Cross multiply
    57,611.64x = 86,563.44 × 55,278.84
  4. Step 4: Simplify right side
    57,611.64x = 4,785,126,549.61
  5. Step 5: Solve for x
    x = 4,785,126,549.61/57,611.64
  6. Step 6: Final answer
    x = 83,058.33

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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.