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Finding the Third Proportional to 49,428 and 77,184

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Solution

The third proportional to 49,428 and 77,184 is: 120,526.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,428 : 77,184 = 77,184 : x
  2. Step 2: Convert to fraction form
    49,428/77,184 = 77,184/x
  3. Step 3: Cross multiply
    49,428x = 77,184 × 77,184
  4. Step 4: Simplify right side
    49,428x = 5,957,369,856
  5. Step 5: Solve for x
    x = 5,957,369,856/49,428
  6. Step 6: Final answer
    x = 120,526.22

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.