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Finding the Fourth Proportional to 6,659,664.95, 9,190,337.28 and 3,603,879.20

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Solution

The fourth proportional to 6,659,664.95, 9,190,337.28 and 3,603,879.20 is: 4,973,353.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,659,664.95 : 9,190,337.28 = 3,603,879.20 : x
  2. Step 2: Convert to fraction form
    6,659,664.95/9,190,337.28 = 3,603,879.20/x
  3. Step 3: Cross multiply
    6,659,664.95x = 9,190,337.28 × 3,603,879.20
  4. Step 4: Simplify right side
    6,659,664.95x = 33,120,865,364,376.57
  5. Step 5: Solve for x
    x = 33,120,865,364,376.57/6,659,664.95
  6. Step 6: Final answer
    x = 4,973,353.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.