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Finding the Fourth Proportional to 21,692.91, 32,538.76 and 6,902.72

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Solution

The fourth proportional to 21,692.91, 32,538.76 and 6,902.72 is: 10,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,692.91 : 32,538.76 = 6,902.72 : x
  2. Step 2: Convert to fraction form
    21,692.91/32,538.76 = 6,902.72/x
  3. Step 3: Cross multiply
    21,692.91x = 32,538.76 × 6,902.72
  4. Step 4: Simplify right side
    21,692.91x = 224,605,752.22
  5. Step 5: Solve for x
    x = 224,605,752.22/21,692.91
  6. Step 6: Final answer
    x = 10,353.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.