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Finding the Third Proportional to 43,102,372 and 66,920,326

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Solution

The third proportional to 43,102,372 and 66,920,326 is: 103,899,851.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,102,372 : 66,920,326 = 66,920,326 : x
  2. Step 2: Convert to fraction form
    43,102,372/66,920,326 = 66,920,326/x
  3. Step 3: Cross multiply
    43,102,372x = 66,920,326 × 66,920,326
  4. Step 4: Simplify right side
    43,102,372x = 4,478,330,031,946,276
  5. Step 5: Solve for x
    x = 4,478,330,031,946,276/43,102,372
  6. Step 6: Final answer
    x = 103,899,851.08

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.