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Finding the Third Proportional to 877,136 and 1,889,620

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Solution

The third proportional to 877,136 and 1,889,620 is: 4,070,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,136 : 1,889,620 = 1,889,620 : x
  2. Step 2: Convert to fraction form
    877,136/1,889,620 = 1,889,620/x
  3. Step 3: Cross multiply
    877,136x = 1,889,620 × 1,889,620
  4. Step 4: Simplify right side
    877,136x = 3,570,663,744,400
  5. Step 5: Solve for x
    x = 3,570,663,744,400/877,136
  6. Step 6: Final answer
    x = 4,070,821.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.