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Finding the Fourth Proportional to 39,978.16, 59,967.44 and 16,604.62

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Solution

The fourth proportional to 39,978.16, 59,967.44 and 16,604.62 is: 24,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,978.16 : 59,967.44 = 16,604.62 : x
  2. Step 2: Convert to fraction form
    39,978.16/59,967.44 = 16,604.62/x
  3. Step 3: Cross multiply
    39,978.16x = 59,967.44 × 16,604.62
  4. Step 4: Simplify right side
    39,978.16x = 995,736,382.90
  5. Step 5: Solve for x
    x = 995,736,382.90/39,978.16
  6. Step 6: Final answer
    x = 24,907.01

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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.