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Finding the Fourth Proportional to 19,615.67, 27,073.55 and 11,656.35

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Solution

The fourth proportional to 19,615.67, 27,073.55 and 11,656.35 is: 16,088.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.67 : 27,073.55 = 11,656.35 : x
  2. Step 2: Convert to fraction form
    19,615.67/27,073.55 = 11,656.35/x
  3. Step 3: Cross multiply
    19,615.67x = 27,073.55 × 11,656.35
  4. Step 4: Simplify right side
    19,615.67x = 315,578,716.26
  5. Step 5: Solve for x
    x = 315,578,716.26/19,615.67
  6. Step 6: Final answer
    x = 16,088.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.