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Finding the Fourth Proportional to 48,168.81, 72,274.01 and 18,607.46

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Solution

The fourth proportional to 48,168.81, 72,274.01 and 18,607.46 is: 27,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,168.81 : 72,274.01 = 18,607.46 : x
  2. Step 2: Convert to fraction form
    48,168.81/72,274.01 = 18,607.46/x
  3. Step 3: Cross multiply
    48,168.81x = 72,274.01 × 18,607.46
  4. Step 4: Simplify right side
    48,168.81x = 1,344,835,295.71
  5. Step 5: Solve for x
    x = 1,344,835,295.71/48,168.81
  6. Step 6: Final answer
    x = 27,919.21

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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.