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Finding the Fourth Proportional to 18,699.15, 25,798.44 and 10,632

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Solution

The fourth proportional to 18,699.15, 25,798.44 and 10,632 is: 14,668.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.15 : 25,798.44 = 10,632 : x
  2. Step 2: Convert to fraction form
    18,699.15/25,798.44 = 10,632/x
  3. Step 3: Cross multiply
    18,699.15x = 25,798.44 × 10,632
  4. Step 4: Simplify right side
    18,699.15x = 274,289,014.08
  5. Step 5: Solve for x
    x = 274,289,014.08/18,699.15
  6. Step 6: Final answer
    x = 14,668.53

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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.