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Finding the Third Proportional to 5,406,799.36 and 7,222,510.55

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Solution

The third proportional to 5,406,799.36 and 7,222,510.55 is: 9,647,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406,799.36 : 7,222,510.55 = 7,222,510.55 : x
  2. Step 2: Convert to fraction form
    5,406,799.36/7,222,510.55 = 7,222,510.55/x
  3. Step 3: Cross multiply
    5,406,799.36x = 7,222,510.55 × 7,222,510.55
  4. Step 4: Simplify right side
    5,406,799.36x = 52,164,658,599,720.61
  5. Step 5: Solve for x
    x = 52,164,658,599,720.61/5,406,799.36
  6. Step 6: Final answer
    x = 9,647,973.81

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.