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Finding the Fourth Proportional to 21,066.08, 29,069.08 and 11,634.03

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Solution

The fourth proportional to 21,066.08, 29,069.08 and 11,634.03 is: 16,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.08 : 29,069.08 = 11,634.03 : x
  2. Step 2: Convert to fraction form
    21,066.08/29,069.08 = 11,634.03/x
  3. Step 3: Cross multiply
    21,066.08x = 29,069.08 × 11,634.03
  4. Step 4: Simplify right side
    21,066.08x = 338,190,519.71
  5. Step 5: Solve for x
    x = 338,190,519.71/21,066.08
  6. Step 6: Final answer
    x = 16,053.80

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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.