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Finding the Fourth Proportional to 54,989.56, 82,489.62 and 15,547.96

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Solution

The fourth proportional to 54,989.56, 82,489.62 and 15,547.96 is: 23,323.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,989.56 : 82,489.62 = 15,547.96 : x
  2. Step 2: Convert to fraction form
    54,989.56/82,489.62 = 15,547.96/x
  3. Step 3: Cross multiply
    54,989.56x = 82,489.62 × 15,547.96
  4. Step 4: Simplify right side
    54,989.56x = 1,282,545,312.18
  5. Step 5: Solve for x
    x = 1,282,545,312.18/54,989.56
  6. Step 6: Final answer
    x = 23,323.43

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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.