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Finding the Third Proportional to 19,930,637,220 and 28,031,107,732

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Solution

The third proportional to 19,930,637,220 and 28,031,107,732 is: 39,423,877,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930,637,220 : 28,031,107,732 = 28,031,107,732 : x
  2. Step 2: Convert to fraction form
    19,930,637,220/28,031,107,732 = 28,031,107,732/x
  3. Step 3: Cross multiply
    19,930,637,220x = 28,031,107,732 × 28,031,107,732
  4. Step 4: Simplify right side
    19,930,637,220x = 785,743,000,682,990,141,440
  5. Step 5: Solve for x
    x = 785,743,000,682,990,141,440/19,930,637,220
  6. Step 6: Final answer
    x = 39,423,877,521.31

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.