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Finding the Fourth Proportional to 39,807.55, 59,694.04 and 12,099.07

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Solution

The fourth proportional to 39,807.55, 59,694.04 and 12,099.07 is: 18,143.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,807.55 : 59,694.04 = 12,099.07 : x
  2. Step 2: Convert to fraction form
    39,807.55/59,694.04 = 12,099.07/x
  3. Step 3: Cross multiply
    39,807.55x = 59,694.04 × 12,099.07
  4. Step 4: Simplify right side
    39,807.55x = 722,242,368.54
  5. Step 5: Solve for x
    x = 722,242,368.54/39,807.55
  6. Step 6: Final answer
    x = 18,143.35

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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.