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Finding the Fourth Proportional to 18,873.86, 26,035.17 and 11,700.50

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Solution

The fourth proportional to 18,873.86, 26,035.17 and 11,700.50 is: 16,140.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873.86 : 26,035.17 = 11,700.50 : x
  2. Step 2: Convert to fraction form
    18,873.86/26,035.17 = 11,700.50/x
  3. Step 3: Cross multiply
    18,873.86x = 26,035.17 × 11,700.50
  4. Step 4: Simplify right side
    18,873.86x = 304,624,376.41
  5. Step 5: Solve for x
    x = 304,624,376.41/18,873.86
  6. Step 6: Final answer
    x = 16,140.02

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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.