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Finding the Fourth Proportional to 64,985.60, 97,401.60 and 27,545.60

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Solution

The fourth proportional to 64,985.60, 97,401.60 and 27,545.60 is: 41,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,985.60 : 97,401.60 = 27,545.60 : x
  2. Step 2: Convert to fraction form
    64,985.60/97,401.60 = 27,545.60/x
  3. Step 3: Cross multiply
    64,985.60x = 97,401.60 × 27,545.60
  4. Step 4: Simplify right side
    64,985.60x = 2,682,985,512.96
  5. Step 5: Solve for x
    x = 2,682,985,512.96/64,985.60
  6. Step 6: Final answer
    x = 41,285.85

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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.