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Finding the Third Proportional to 27,655 and 42,531

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Solution

The third proportional to 27,655 and 42,531 is: 65,409.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,655 : 42,531 = 42,531 : x
  2. Step 2: Convert to fraction form
    27,655/42,531 = 42,531/x
  3. Step 3: Cross multiply
    27,655x = 42,531 × 42,531
  4. Step 4: Simplify right side
    27,655x = 1,808,885,961
  5. Step 5: Solve for x
    x = 1,808,885,961/27,655
  6. Step 6: Final answer
    x = 65,409.00

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.