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Finding the Fourth Proportional to 65,472.48, 90,352.08 and 35,664.48

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Solution

The fourth proportional to 65,472.48, 90,352.08 and 35,664.48 is: 49,217.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,472.48 : 90,352.08 = 35,664.48 : x
  2. Step 2: Convert to fraction form
    65,472.48/90,352.08 = 35,664.48/x
  3. Step 3: Cross multiply
    65,472.48x = 90,352.08 × 35,664.48
  4. Step 4: Simplify right side
    65,472.48x = 3,222,359,950.12
  5. Step 5: Solve for x
    x = 3,222,359,950.12/65,472.48
  6. Step 6: Final answer
    x = 49,217.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.