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Finding the Fourth Proportional to 8,889,736.80, 13,334,605.20 and 6,019,955.40

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Solution

The fourth proportional to 8,889,736.80, 13,334,605.20 and 6,019,955.40 is: 9,029,933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,736.80 : 13,334,605.20 = 6,019,955.40 : x
  2. Step 2: Convert to fraction form
    8,889,736.80/13,334,605.20 = 6,019,955.40/x
  3. Step 3: Cross multiply
    8,889,736.80x = 13,334,605.20 × 6,019,955.40
  4. Step 4: Simplify right side
    8,889,736.80x = 80,273,728,580,608.08
  5. Step 5: Solve for x
    x = 80,273,728,580,608.08/8,889,736.80
  6. Step 6: Final answer
    x = 9,029,933.10

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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.