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Finding the Fourth Proportional to 48,603.38, 72,905.06 and 11,667.38

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Solution

The fourth proportional to 48,603.38, 72,905.06 and 11,667.38 is: 17,501.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,603.38 : 72,905.06 = 11,667.38 : x
  2. Step 2: Convert to fraction form
    48,603.38/72,905.06 = 11,667.38/x
  3. Step 3: Cross multiply
    48,603.38x = 72,905.06 × 11,667.38
  4. Step 4: Simplify right side
    48,603.38x = 850,610,703.59
  5. Step 5: Solve for x
    x = 850,610,703.59/48,603.38
  6. Step 6: Final answer
    x = 17,501.06

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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.