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Finding the Fourth Proportional to 19,615.01, 27,067.91 and 11,657.16

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Solution

The fourth proportional to 19,615.01, 27,067.91 and 11,657.16 is: 16,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.01 : 27,067.91 = 11,657.16 : x
  2. Step 2: Convert to fraction form
    19,615.01/27,067.91 = 11,657.16/x
  3. Step 3: Cross multiply
    19,615.01x = 27,067.91 × 11,657.16
  4. Step 4: Simplify right side
    19,615.01x = 315,534,899.45
  5. Step 5: Solve for x
    x = 315,534,899.45/19,615.01
  6. Step 6: Final answer
    x = 16,086.40

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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.