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Finding the Fourth Proportional to 19,364.50, 26,718.92 and 12,659.98

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Solution

The fourth proportional to 19,364.50, 26,718.92 and 12,659.98 is: 17,468.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,364.50 : 26,718.92 = 12,659.98 : x
  2. Step 2: Convert to fraction form
    19,364.50/26,718.92 = 12,659.98/x
  3. Step 3: Cross multiply
    19,364.50x = 26,718.92 × 12,659.98
  4. Step 4: Simplify right side
    19,364.50x = 338,260,992.82
  5. Step 5: Solve for x
    x = 338,260,992.82/19,364.50
  6. Step 6: Final answer
    x = 17,468.10

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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.