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Finding the Fourth Proportional to 64,592.21, 89,144.63 and 35,914.73

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Solution

The fourth proportional to 64,592.21, 89,144.63 and 35,914.73 is: 49,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,592.21 : 89,144.63 = 35,914.73 : x
  2. Step 2: Convert to fraction form
    64,592.21/89,144.63 = 35,914.73/x
  3. Step 3: Cross multiply
    64,592.21x = 89,144.63 × 35,914.73
  4. Step 4: Simplify right side
    64,592.21x = 3,201,604,692.10
  5. Step 5: Solve for x
    x = 3,201,604,692.10/64,592.21
  6. Step 6: Final answer
    x = 49,566.43

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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.