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Finding the Fourth Proportional to 64,040.98, 96,059.42 and 28,980.64

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Solution

The fourth proportional to 64,040.98, 96,059.42 and 28,980.64 is: 43,470.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,040.98 : 96,059.42 = 28,980.64 : x
  2. Step 2: Convert to fraction form
    64,040.98/96,059.42 = 28,980.64/x
  3. Step 3: Cross multiply
    64,040.98x = 96,059.42 × 28,980.64
  4. Step 4: Simplify right side
    64,040.98x = 2,783,863,013.14
  5. Step 5: Solve for x
    x = 2,783,863,013.14/64,040.98
  6. Step 6: Final answer
    x = 43,470.03

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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.