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Finding the Fourth Proportional to 22,243,729.80, 31,065,639 and 22,243,729.80

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Solution

The fourth proportional to 22,243,729.80, 31,065,639 and 22,243,729.80 is: 31,065,639

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,243,729.80 : 31,065,639 = 22,243,729.80 : x
  2. Step 2: Convert to fraction form
    22,243,729.80/31,065,639 = 22,243,729.80/x
  3. Step 3: Cross multiply
    22,243,729.80x = 31,065,639 × 22,243,729.80
  4. Step 4: Simplify right side
    22,243,729.80x = 691,015,679,980,342.25
  5. Step 5: Solve for x
    x = 691,015,679,980,342.25/22,243,729.80
  6. Step 6: Final answer
    x = 31,065,639

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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.