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Finding the Fourth Proportional to 19,959.01, 27,542.30 and 11,459.81

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Solution

The fourth proportional to 19,959.01, 27,542.30 and 11,459.81 is: 15,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.01 : 27,542.30 = 11,459.81 : x
  2. Step 2: Convert to fraction form
    19,959.01/27,542.30 = 11,459.81/x
  3. Step 3: Cross multiply
    19,959.01x = 27,542.30 × 11,459.81
  4. Step 4: Simplify right side
    19,959.01x = 315,629,536.52
  5. Step 5: Solve for x
    x = 315,629,536.52/19,959.01
  6. Step 6: Final answer
    x = 15,813.89

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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.