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Finding the Third Proportional to 59,472 and 129,888

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Solution

The third proportional to 59,472 and 129,888 is: 283,677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,472 : 129,888 = 129,888 : x
  2. Step 2: Convert to fraction form
    59,472/129,888 = 129,888/x
  3. Step 3: Cross multiply
    59,472x = 129,888 × 129,888
  4. Step 4: Simplify right side
    59,472x = 16,870,892,544
  5. Step 5: Solve for x
    x = 16,870,892,544/59,472
  6. Step 6: Final answer
    x = 283,677.91

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.