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Finding the Fourth Proportional to 19,239.76, 26,550.66 and 10,856.08

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Solution

The fourth proportional to 19,239.76, 26,550.66 and 10,856.08 is: 14,981.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,239.76 : 26,550.66 = 10,856.08 : x
  2. Step 2: Convert to fraction form
    19,239.76/26,550.66 = 10,856.08/x
  3. Step 3: Cross multiply
    19,239.76x = 26,550.66 × 10,856.08
  4. Step 4: Simplify right side
    19,239.76x = 288,236,089.01
  5. Step 5: Solve for x
    x = 288,236,089.01/19,239.76
  6. Step 6: Final answer
    x = 14,981.27

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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.