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Finding the Third Proportional to 30,979,632 and 67,332,480

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Solution

The third proportional to 30,979,632 and 67,332,480 is: 146,343,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,979,632 : 67,332,480 = 67,332,480 : x
  2. Step 2: Convert to fraction form
    30,979,632/67,332,480 = 67,332,480/x
  3. Step 3: Cross multiply
    30,979,632x = 67,332,480 × 67,332,480
  4. Step 4: Simplify right side
    30,979,632x = 4,533,662,862,950,400
  5. Step 5: Solve for x
    x = 4,533,662,862,950,400/30,979,632
  6. Step 6: Final answer
    x = 146,343,341.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.