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Finding the Fourth Proportional to 18,873, 26,044.74 and 10,491.16

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Solution

The fourth proportional to 18,873, 26,044.74 and 10,491.16 is: 14,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873 : 26,044.74 = 10,491.16 : x
  2. Step 2: Convert to fraction form
    18,873/26,044.74 = 10,491.16/x
  3. Step 3: Cross multiply
    18,873x = 26,044.74 × 10,491.16
  4. Step 4: Simplify right side
    18,873x = 273,239,534.50
  5. Step 5: Solve for x
    x = 273,239,534.50/18,873
  6. Step 6: Final answer
    x = 14,477.80

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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.