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Finding the Fourth Proportional to 7,344,809.20, 10,293,361.70 and 7,344,809.20

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Solution

The fourth proportional to 7,344,809.20, 10,293,361.70 and 7,344,809.20 is: 10,293,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,344,809.20 : 10,293,361.70 = 7,344,809.20 : x
  2. Step 2: Convert to fraction form
    7,344,809.20/10,293,361.70 = 7,344,809.20/x
  3. Step 3: Cross multiply
    7,344,809.20x = 10,293,361.70 × 7,344,809.20
  4. Step 4: Simplify right side
    7,344,809.20x = 75,602,777,713,087.64
  5. Step 5: Solve for x
    x = 75,602,777,713,087.64/7,344,809.20
  6. Step 6: Final answer
    x = 10,293,361.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.