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Finding the Fourth Proportional to 19,647.01, 27,113.42 and 11,149.48

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Solution

The fourth proportional to 19,647.01, 27,113.42 and 11,149.48 is: 15,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,647.01 : 27,113.42 = 11,149.48 : x
  2. Step 2: Convert to fraction form
    19,647.01/27,113.42 = 11,149.48/x
  3. Step 3: Cross multiply
    19,647.01x = 27,113.42 × 11,149.48
  4. Step 4: Simplify right side
    19,647.01x = 302,300,534.02
  5. Step 5: Solve for x
    x = 302,300,534.02/19,647.01
  6. Step 6: Final answer
    x = 15,386.59

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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.