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Finding the Fourth Proportional to 64,994.67, 89,692.65 and 36,702.18

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Solution

The fourth proportional to 64,994.67, 89,692.65 and 36,702.18 is: 50,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,994.67 : 89,692.65 = 36,702.18 : x
  2. Step 2: Convert to fraction form
    64,994.67/89,692.65 = 36,702.18/x
  3. Step 3: Cross multiply
    64,994.67x = 89,692.65 × 36,702.18
  4. Step 4: Simplify right side
    64,994.67x = 3,291,915,784.98
  5. Step 5: Solve for x
    x = 3,291,915,784.98/64,994.67
  6. Step 6: Final answer
    x = 50,649.01

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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.