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Finding the Fourth Proportional to 45,640.72, 68,360.94 and 37,653.39

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Solution

The fourth proportional to 45,640.72, 68,360.94 and 37,653.39 is: 56,397.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,640.72 : 68,360.94 = 37,653.39 : x
  2. Step 2: Convert to fraction form
    45,640.72/68,360.94 = 37,653.39/x
  3. Step 3: Cross multiply
    45,640.72x = 68,360.94 × 37,653.39
  4. Step 4: Simplify right side
    45,640.72x = 2,574,021,134.59
  5. Step 5: Solve for x
    x = 2,574,021,134.59/45,640.72
  6. Step 6: Final answer
    x = 56,397.47

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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.