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Finding the Fourth Proportional to 48,601.71, 72,921.60 and 19,014.48

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Solution

The fourth proportional to 48,601.71, 72,921.60 and 19,014.48 is: 28,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,601.71 : 72,921.60 = 19,014.48 : x
  2. Step 2: Convert to fraction form
    48,601.71/72,921.60 = 19,014.48/x
  3. Step 3: Cross multiply
    48,601.71x = 72,921.60 × 19,014.48
  4. Step 4: Simplify right side
    48,601.71x = 1,386,566,304.77
  5. Step 5: Solve for x
    x = 1,386,566,304.77/48,601.71
  6. Step 6: Final answer
    x = 28,529.17

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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.