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Finding the Fourth Proportional to 39,811.97, 59,720.05 and 10,230.01

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Solution

The fourth proportional to 39,811.97, 59,720.05 and 10,230.01 is: 15,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,811.97 : 59,720.05 = 10,230.01 : x
  2. Step 2: Convert to fraction form
    39,811.97/59,720.05 = 10,230.01/x
  3. Step 3: Cross multiply
    39,811.97x = 59,720.05 × 10,230.01
  4. Step 4: Simplify right side
    39,811.97x = 610,936,410.10
  5. Step 5: Solve for x
    x = 610,936,410.10/39,811.97
  6. Step 6: Final answer
    x = 15,345.55

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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.