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Finding the Fourth Proportional to 7,019,116.80, 10,512,928.80 and 5,759,404.80

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Solution

The fourth proportional to 7,019,116.80, 10,512,928.80 and 5,759,404.80 is: 8,626,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019,116.80 : 10,512,928.80 = 5,759,404.80 : x
  2. Step 2: Convert to fraction form
    7,019,116.80/10,512,928.80 = 5,759,404.80/x
  3. Step 3: Cross multiply
    7,019,116.80x = 10,512,928.80 × 5,759,404.80
  4. Step 4: Simplify right side
    7,019,116.80x = 60,548,212,592,778.24
  5. Step 5: Solve for x
    x = 60,548,212,592,778.24/7,019,116.80
  6. Step 6: Final answer
    x = 8,626,186.79

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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.