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Finding the Fourth Proportional to 64,692.41, 89,270.71 and 36,392.63

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Solution

The fourth proportional to 64,692.41, 89,270.71 and 36,392.63 is: 50,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.41 : 89,270.71 = 36,392.63 : x
  2. Step 2: Convert to fraction form
    64,692.41/89,270.71 = 36,392.63/x
  3. Step 3: Cross multiply
    64,692.41x = 89,270.71 × 36,392.63
  4. Step 4: Simplify right side
    64,692.41x = 3,248,795,381.53
  5. Step 5: Solve for x
    x = 3,248,795,381.53/64,692.41
  6. Step 6: Final answer
    x = 50,219.12

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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.