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Finding the Third Proportional to 4,869,821.25 and 7,569,986.63

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Solution

The third proportional to 4,869,821.25 and 7,569,986.63 is: 11,767,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869,821.25 : 7,569,986.63 = 7,569,986.63 : x
  2. Step 2: Convert to fraction form
    4,869,821.25/7,569,986.63 = 7,569,986.63/x
  3. Step 3: Cross multiply
    4,869,821.25x = 7,569,986.63 × 7,569,986.63
  4. Step 4: Simplify right side
    4,869,821.25x = 57,304,697,502,678.89
  5. Step 5: Solve for x
    x = 57,304,697,502,678.89/4,869,821.25
  6. Step 6: Final answer
    x = 11,767,310.25

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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.