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Finding the Third Proportional to 58,411 and 91,508

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Solution

The third proportional to 58,411 and 91,508 is: 143,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,411 : 91,508 = 91,508 : x
  2. Step 2: Convert to fraction form
    58,411/91,508 = 91,508/x
  3. Step 3: Cross multiply
    58,411x = 91,508 × 91,508
  4. Step 4: Simplify right side
    58,411x = 8,373,714,064
  5. Step 5: Solve for x
    x = 8,373,714,064/58,411
  6. Step 6: Final answer
    x = 143,358.51

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.