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Finding the Fourth Proportional to 61,905.72, 92,857.65 and 15,158.60

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Solution

The fourth proportional to 61,905.72, 92,857.65 and 15,158.60 is: 22,737.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,905.72 : 92,857.65 = 15,158.60 : x
  2. Step 2: Convert to fraction form
    61,905.72/92,857.65 = 15,158.60/x
  3. Step 3: Cross multiply
    61,905.72x = 92,857.65 × 15,158.60
  4. Step 4: Simplify right side
    61,905.72x = 1,407,591,509.00
  5. Step 5: Solve for x
    x = 1,407,591,509.00/61,905.72
  6. Step 6: Final answer
    x = 22,737.66

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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.