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Finding the Fourth Proportional to 64,692.30, 89,271.62 and 36,396.30

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Solution

The fourth proportional to 64,692.30, 89,271.62 and 36,396.30 is: 50,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,692.30 : 89,271.62 = 36,396.30 : x
  2. Step 2: Convert to fraction form
    64,692.30/89,271.62 = 36,396.30/x
  3. Step 3: Cross multiply
    64,692.30x = 89,271.62 × 36,396.30
  4. Step 4: Simplify right side
    64,692.30x = 3,249,156,663.01
  5. Step 5: Solve for x
    x = 3,249,156,663.01/64,692.30
  6. Step 6: Final answer
    x = 50,224.78

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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.