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Finding the Fourth Proportional to 21,064.68, 29,067.80 and 11,632.50

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Solution

The fourth proportional to 21,064.68, 29,067.80 and 11,632.50 is: 16,052.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.68 : 29,067.80 = 11,632.50 : x
  2. Step 2: Convert to fraction form
    21,064.68/29,067.80 = 11,632.50/x
  3. Step 3: Cross multiply
    21,064.68x = 29,067.80 × 11,632.50
  4. Step 4: Simplify right side
    21,064.68x = 338,131,125.34
  5. Step 5: Solve for x
    x = 338,131,125.34/21,064.68
  6. Step 6: Final answer
    x = 16,052.04

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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.