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Finding the Fourth Proportional to 64,692.60, 89,269.44 and 36,397.68

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Solution

The fourth proportional to 64,692.60, 89,269.44 and 36,397.68 is: 50,225.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.60 : 89,269.44 = 36,397.68 : x
  2. Step 2: Convert to fraction form
    64,692.60/89,269.44 = 36,397.68/x
  3. Step 3: Cross multiply
    64,692.60x = 89,269.44 × 36,397.68
  4. Step 4: Simplify right side
    64,692.60x = 3,249,200,510.90
  5. Step 5: Solve for x
    x = 3,249,200,510.90/64,692.60
  6. Step 6: Final answer
    x = 50,225.23

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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.