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Finding the Fourth Proportional to 43,007.60, 64,498.60 and 16,697.20

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Solution

The fourth proportional to 43,007.60, 64,498.60 and 16,697.20 is: 25,040.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,007.60 : 64,498.60 = 16,697.20 : x
  2. Step 2: Convert to fraction form
    43,007.60/64,498.60 = 16,697.20/x
  3. Step 3: Cross multiply
    43,007.60x = 64,498.60 × 16,697.20
  4. Step 4: Simplify right side
    43,007.60x = 1,076,946,023.92
  5. Step 5: Solve for x
    x = 1,076,946,023.92/43,007.60
  6. Step 6: Final answer
    x = 25,040.83

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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.