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Finding the Fourth Proportional to 48,360.55, 72,529.80 and 18,368.56

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Solution

The fourth proportional to 48,360.55, 72,529.80 and 18,368.56 is: 27,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,360.55 : 72,529.80 = 18,368.56 : x
  2. Step 2: Convert to fraction form
    48,360.55/72,529.80 = 18,368.56/x
  3. Step 3: Cross multiply
    48,360.55x = 72,529.80 × 18,368.56
  4. Step 4: Simplify right side
    48,360.55x = 1,332,267,983.09
  5. Step 5: Solve for x
    x = 1,332,267,983.09/48,360.55
  6. Step 6: Final answer
    x = 27,548.65

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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.