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Finding the Fourth Proportional to 18,585, 25,647.30 and 10,201.32

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Solution

The fourth proportional to 18,585, 25,647.30 and 10,201.32 is: 14,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,585 : 25,647.30 = 10,201.32 : x
  2. Step 2: Convert to fraction form
    18,585/25,647.30 = 10,201.32/x
  3. Step 3: Cross multiply
    18,585x = 25,647.30 × 10,201.32
  4. Step 4: Simplify right side
    18,585x = 261,636,314.44
  5. Step 5: Solve for x
    x = 261,636,314.44/18,585
  6. Step 6: Final answer
    x = 14,077.82

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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.