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Finding the Fourth Proportional to 53,895.73, 74,355.99 and 53,812.66

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Solution

The fourth proportional to 53,895.73, 74,355.99 and 53,812.66 is: 74,241.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,895.73 : 74,355.99 = 53,812.66 : x
  2. Step 2: Convert to fraction form
    53,895.73/74,355.99 = 53,812.66/x
  3. Step 3: Cross multiply
    53,895.73x = 74,355.99 × 53,812.66
  4. Step 4: Simplify right side
    53,895.73x = 4,001,293,608.83
  5. Step 5: Solve for x
    x = 4,001,293,608.83/53,895.73
  6. Step 6: Final answer
    x = 74,241.38

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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.