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Finding the Fourth Proportional to 64,541.25, 89,071.47 and 36,246.96

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Solution

The fourth proportional to 64,541.25, 89,071.47 and 36,246.96 is: 50,023.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,541.25 : 89,071.47 = 36,246.96 : x
  2. Step 2: Convert to fraction form
    64,541.25/89,071.47 = 36,246.96/x
  3. Step 3: Cross multiply
    64,541.25x = 89,071.47 × 36,246.96
  4. Step 4: Simplify right side
    64,541.25x = 3,228,570,010.23
  5. Step 5: Solve for x
    x = 3,228,570,010.23/64,541.25
  6. Step 6: Final answer
    x = 50,023.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.