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Finding the Third Proportional to 61,128 and 93,509

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Solution

The third proportional to 61,128 and 93,509 is: 143,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,128 : 93,509 = 93,509 : x
  2. Step 2: Convert to fraction form
    61,128/93,509 = 93,509/x
  3. Step 3: Cross multiply
    61,128x = 93,509 × 93,509
  4. Step 4: Simplify right side
    61,128x = 8,743,933,081
  5. Step 5: Solve for x
    x = 8,743,933,081/61,128
  6. Step 6: Final answer
    x = 143,043.01

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.