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Finding the Third Proportional to 35,708 and 75,428

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Solution

The third proportional to 35,708 and 75,428 is: 159,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,708 : 75,428 = 75,428 : x
  2. Step 2: Convert to fraction form
    35,708/75,428 = 75,428/x
  3. Step 3: Cross multiply
    35,708x = 75,428 × 75,428
  4. Step 4: Simplify right side
    35,708x = 5,689,383,184
  5. Step 5: Solve for x
    x = 5,689,383,184/35,708
  6. Step 6: Final answer
    x = 159,330.77

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.