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Finding the Fourth Proportional to 8,889,190.80, 13,333,786.20 and 6,019,409.40

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Solution

The fourth proportional to 8,889,190.80, 13,333,786.20 and 6,019,409.40 is: 9,029,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889,190.80 : 13,333,786.20 = 6,019,409.40 : x
  2. Step 2: Convert to fraction form
    8,889,190.80/13,333,786.20 = 6,019,409.40/x
  3. Step 3: Cross multiply
    8,889,190.80x = 13,333,786.20 × 6,019,409.40
  4. Step 4: Simplify right side
    8,889,190.80x = 80,261,517,989,870.28
  5. Step 5: Solve for x
    x = 80,261,517,989,870.28/8,889,190.80
  6. Step 6: Final answer
    x = 9,029,114.10

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1.5x scale

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.