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Finding the Third Proportional to 53,835.50 and 75,440

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Solution

The third proportional to 53,835.50 and 75,440 is: 105,714.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,835.50 : 75,440 = 75,440 : x
  2. Step 2: Convert to fraction form
    53,835.50/75,440 = 75,440/x
  3. Step 3: Cross multiply
    53,835.50x = 75,440 × 75,440
  4. Step 4: Simplify right side
    53,835.50x = 5,691,193,600
  5. Step 5: Solve for x
    x = 5,691,193,600/53,835.50
  6. Step 6: Final answer
    x = 105,714.51

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.