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Finding the Fourth Proportional to 13,056.60, 19,561.14 and 11,656.92

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Solution

The fourth proportional to 13,056.60, 19,561.14 and 11,656.92 is: 17,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.60 : 19,561.14 = 11,656.92 : x
  2. Step 2: Convert to fraction form
    13,056.60/19,561.14 = 11,656.92/x
  3. Step 3: Cross multiply
    13,056.60x = 19,561.14 × 11,656.92
  4. Step 4: Simplify right side
    13,056.60x = 228,022,644.09
  5. Step 5: Solve for x
    x = 228,022,644.09/13,056.60
  6. Step 6: Final answer
    x = 17,464.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.