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Finding the Fourth Proportional to 64,692.63, 89,274.83 and 36,398.39

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Solution

The fourth proportional to 64,692.63, 89,274.83 and 36,398.39 is: 50,229.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.63 : 89,274.83 = 36,398.39 : x
  2. Step 2: Convert to fraction form
    64,692.63/89,274.83 = 36,398.39/x
  3. Step 3: Cross multiply
    64,692.63x = 89,274.83 × 36,398.39
  4. Step 4: Simplify right side
    64,692.63x = 3,249,459,451.16
  5. Step 5: Solve for x
    x = 3,249,459,451.16/64,692.63
  6. Step 6: Final answer
    x = 50,229.21

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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.