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Finding the Fourth Proportional to 48,689.93, 73,045.83 and 15,411.98

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Solution

The fourth proportional to 48,689.93, 73,045.83 and 15,411.98 is: 23,121.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,689.93 : 73,045.83 = 15,411.98 : x
  2. Step 2: Convert to fraction form
    48,689.93/73,045.83 = 15,411.98/x
  3. Step 3: Cross multiply
    48,689.93x = 73,045.83 × 15,411.98
  4. Step 4: Simplify right side
    48,689.93x = 1,125,780,871.04
  5. Step 5: Solve for x
    x = 1,125,780,871.04/48,689.93
  6. Step 6: Final answer
    x = 23,121.43

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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.