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Finding the Fourth Proportional to 54,465.72, 81,688.86 and 14,484.93

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Solution

The fourth proportional to 54,465.72, 81,688.86 and 14,484.93 is: 21,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,465.72 : 81,688.86 = 14,484.93 : x
  2. Step 2: Convert to fraction form
    54,465.72/81,688.86 = 14,484.93/x
  3. Step 3: Cross multiply
    54,465.72x = 81,688.86 × 14,484.93
  4. Step 4: Simplify right side
    54,465.72x = 1,183,257,418.88
  5. Step 5: Solve for x
    x = 1,183,257,418.88/54,465.72
  6. Step 6: Final answer
    x = 21,724.81

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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.