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Finding the Third Proportional to 19,890,552 and 28,075,376

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Solution

The third proportional to 19,890,552 and 28,075,376 is: 39,628,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890,552 : 28,075,376 = 28,075,376 : x
  2. Step 2: Convert to fraction form
    19,890,552/28,075,376 = 28,075,376/x
  3. Step 3: Cross multiply
    19,890,552x = 28,075,376 × 28,075,376
  4. Step 4: Simplify right side
    19,890,552x = 788,226,737,541,376
  5. Step 5: Solve for x
    x = 788,226,737,541,376/19,890,552
  6. Step 6: Final answer
    x = 39,628,198.23

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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.