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Finding the Fourth Proportional to 64,541.58, 89,051.67 and 37,668.78

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Solution

The fourth proportional to 64,541.58, 89,051.67 and 37,668.78 is: 51,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,541.58 : 89,051.67 = 37,668.78 : x
  2. Step 2: Convert to fraction form
    64,541.58/89,051.67 = 37,668.78/x
  3. Step 3: Cross multiply
    64,541.58x = 89,051.67 × 37,668.78
  4. Step 4: Simplify right side
    64,541.58x = 3,354,467,765.86
  5. Step 5: Solve for x
    x = 3,354,467,765.86/64,541.58
  6. Step 6: Final answer
    x = 51,973.75

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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.