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Finding the Fourth Proportional to 18,464.99, 25,479.35 and 10,507.35

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Solution

The fourth proportional to 18,464.99, 25,479.35 and 10,507.35 is: 14,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,464.99 : 25,479.35 = 10,507.35 : x
  2. Step 2: Convert to fraction form
    18,464.99/25,479.35 = 10,507.35/x
  3. Step 3: Cross multiply
    18,464.99x = 25,479.35 × 10,507.35
  4. Step 4: Simplify right side
    18,464.99x = 267,720,395.69
  5. Step 5: Solve for x
    x = 267,720,395.69/18,464.99
  6. Step 6: Final answer
    x = 14,498.81

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.