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Finding the Fourth Proportional to 18,807, 25,953.66 and 10,424.04

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Solution

The fourth proportional to 18,807, 25,953.66 and 10,424.04 is: 14,385.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807 : 25,953.66 = 10,424.04 : x
  2. Step 2: Convert to fraction form
    18,807/25,953.66 = 10,424.04/x
  3. Step 3: Cross multiply
    18,807x = 25,953.66 × 10,424.04
  4. Step 4: Simplify right side
    18,807x = 270,541,989.99
  5. Step 5: Solve for x
    x = 270,541,989.99/18,807
  6. Step 6: Final answer
    x = 14,385.18

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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.