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Finding the Third Proportional to 34,890 and 53,382

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Solution

The third proportional to 34,890 and 53,382 is: 81,674.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,890 : 53,382 = 53,382 : x
  2. Step 2: Convert to fraction form
    34,890/53,382 = 53,382/x
  3. Step 3: Cross multiply
    34,890x = 53,382 × 53,382
  4. Step 4: Simplify right side
    34,890x = 2,849,637,924
  5. Step 5: Solve for x
    x = 2,849,637,924/34,890
  6. Step 6: Final answer
    x = 81,674.92

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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.