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Finding the Fourth Proportional to 22,145,428.60, 31,035,486.50 and 22,145,428.60

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Solution

The fourth proportional to 22,145,428.60, 31,035,486.50 and 22,145,428.60 is: 31,035,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145,428.60 : 31,035,486.50 = 22,145,428.60 : x
  2. Step 2: Convert to fraction form
    22,145,428.60/31,035,486.50 = 22,145,428.60/x
  3. Step 3: Cross multiply
    22,145,428.60x = 31,035,486.50 × 22,145,428.60
  4. Step 4: Simplify right side
    22,145,428.60x = 687,294,150,352,014
  5. Step 5: Solve for x
    x = 687,294,150,352,014/22,145,428.60
  6. Step 6: Final answer
    x = 31,035,486.50

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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.