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Finding the Fourth Proportional to 48,383.70, 72,580.13 and 18,803.82

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Solution

The fourth proportional to 48,383.70, 72,580.13 and 18,803.82 is: 28,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,383.70 : 72,580.13 = 18,803.82 : x
  2. Step 2: Convert to fraction form
    48,383.70/72,580.13 = 18,803.82/x
  3. Step 3: Cross multiply
    48,383.70x = 72,580.13 × 18,803.82
  4. Step 4: Simplify right side
    48,383.70x = 1,364,783,700.10
  5. Step 5: Solve for x
    x = 1,364,783,700.10/48,383.70
  6. Step 6: Final answer
    x = 28,207.51

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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.