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Finding the Fourth Proportional to 21,651.48, 32,462.82 and 7,798.68

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Solution

The fourth proportional to 21,651.48, 32,462.82 and 7,798.68 is: 11,692.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651.48 : 32,462.82 = 7,798.68 : x
  2. Step 2: Convert to fraction form
    21,651.48/32,462.82 = 7,798.68/x
  3. Step 3: Cross multiply
    21,651.48x = 32,462.82 × 7,798.68
  4. Step 4: Simplify right side
    21,651.48x = 253,167,145.08
  5. Step 5: Solve for x
    x = 253,167,145.08/21,651.48
  6. Step 6: Final answer
    x = 11,692.83

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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.