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Finding the Fourth Proportional to 54,679.79, 82,019.72 and 15,237.95

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Solution

The fourth proportional to 54,679.79, 82,019.72 and 15,237.95 is: 22,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,679.79 : 82,019.72 = 15,237.95 : x
  2. Step 2: Convert to fraction form
    54,679.79/82,019.72 = 15,237.95/x
  3. Step 3: Cross multiply
    54,679.79x = 82,019.72 × 15,237.95
  4. Step 4: Simplify right side
    54,679.79x = 1,249,812,020.37
  5. Step 5: Solve for x
    x = 1,249,812,020.37/54,679.79
  6. Step 6: Final answer
    x = 22,856.93

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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.