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Finding the Third Proportional to 29,769 and 40,428

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Solution

The third proportional to 29,769 and 40,428 is: 54,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,769 : 40,428 = 40,428 : x
  2. Step 2: Convert to fraction form
    29,769/40,428 = 40,428/x
  3. Step 3: Cross multiply
    29,769x = 40,428 × 40,428
  4. Step 4: Simplify right side
    29,769x = 1,634,423,184
  5. Step 5: Solve for x
    x = 1,634,423,184/29,769
  6. Step 6: Final answer
    x = 54,903.53

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.