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Finding the Fourth Proportional to 60,916.60, 91,363.72 and 27,628.64

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Solution

The fourth proportional to 60,916.60, 91,363.72 and 27,628.64 is: 41,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,916.60 : 91,363.72 = 27,628.64 : x
  2. Step 2: Convert to fraction form
    60,916.60/91,363.72 = 27,628.64/x
  3. Step 3: Cross multiply
    60,916.60x = 91,363.72 × 27,628.64
  4. Step 4: Simplify right side
    60,916.60x = 2,524,255,328.94
  5. Step 5: Solve for x
    x = 2,524,255,328.94/60,916.60
  6. Step 6: Final answer
    x = 41,437.89

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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.