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Finding the Fourth Proportional to 12,267,704.40, 18,402,431.40 and 3,748,027.20

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Solution

The fourth proportional to 12,267,704.40, 18,402,431.40 and 3,748,027.20 is: 5,622,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,267,704.40 : 18,402,431.40 = 3,748,027.20 : x
  2. Step 2: Convert to fraction form
    12,267,704.40/18,402,431.40 = 3,748,027.20/x
  3. Step 3: Cross multiply
    12,267,704.40x = 18,402,431.40 × 3,748,027.20
  4. Step 4: Simplify right side
    12,267,704.40x = 68,972,813,433,334.08
  5. Step 5: Solve for x
    x = 68,972,813,433,334.08/12,267,704.40
  6. Step 6: Final answer
    x = 5,622,308.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.