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Finding the Third Proportional to 31,443,822 and 66,666,732

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Solution

The third proportional to 31,443,822 and 66,666,732 is: 141,345,831.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,443,822 : 66,666,732 = 66,666,732 : x
  2. Step 2: Convert to fraction form
    31,443,822/66,666,732 = 66,666,732/x
  3. Step 3: Cross multiply
    31,443,822x = 66,666,732 × 66,666,732
  4. Step 4: Simplify right side
    31,443,822x = 4,444,453,155,559,824
  5. Step 5: Solve for x
    x = 4,444,453,155,559,824/31,443,822
  6. Step 6: Final answer
    x = 141,345,831.16

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.