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Finding the Fourth Proportional to 64,572.95, 89,128.26 and 41,910.62

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Solution

The fourth proportional to 64,572.95, 89,128.26 and 41,910.62 is: 57,848.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,572.95 : 89,128.26 = 41,910.62 : x
  2. Step 2: Convert to fraction form
    64,572.95/89,128.26 = 41,910.62/x
  3. Step 3: Cross multiply
    64,572.95x = 89,128.26 × 41,910.62
  4. Step 4: Simplify right side
    64,572.95x = 3,735,420,636.12
  5. Step 5: Solve for x
    x = 3,735,420,636.12/64,572.95
  6. Step 6: Final answer
    x = 57,848.07

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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.