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Finding the Fourth Proportional to 39,468.55, 59,150.99 and 18,697.99

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Solution

The fourth proportional to 39,468.55, 59,150.99 and 18,697.99 is: 28,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,468.55 : 59,150.99 = 18,697.99 : x
  2. Step 2: Convert to fraction form
    39,468.55/59,150.99 = 18,697.99/x
  3. Step 3: Cross multiply
    39,468.55x = 59,150.99 × 18,697.99
  4. Step 4: Simplify right side
    39,468.55x = 1,106,004,526.02
  5. Step 5: Solve for x
    x = 1,106,004,526.02/39,468.55
  6. Step 6: Final answer
    x = 28,022.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.