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Finding the Third Proportional to 39,891,956 and 87,350,658

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Solution

The third proportional to 39,891,956 and 87,350,658 is: 191,270,075.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,891,956 : 87,350,658 = 87,350,658 : x
  2. Step 2: Convert to fraction form
    39,891,956/87,350,658 = 87,350,658/x
  3. Step 3: Cross multiply
    39,891,956x = 87,350,658 × 87,350,658
  4. Step 4: Simplify right side
    39,891,956x = 7,630,137,453,032,964
  5. Step 5: Solve for x
    x = 7,630,137,453,032,964/39,891,956
  6. Step 6: Final answer
    x = 191,270,075.93

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.