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Finding the Fourth Proportional to 18,586.99, 25,649.35 and 10,629.01

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Solution

The fourth proportional to 18,586.99, 25,649.35 and 10,629.01 is: 14,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.99 : 25,649.35 = 10,629.01 : x
  2. Step 2: Convert to fraction form
    18,586.99/25,649.35 = 10,629.01/x
  3. Step 3: Cross multiply
    18,586.99x = 25,649.35 × 10,629.01
  4. Step 4: Simplify right side
    18,586.99x = 272,627,197.64
  5. Step 5: Solve for x
    x = 272,627,197.64/18,586.99
  6. Step 6: Final answer
    x = 14,667.64

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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.