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Finding the Fourth Proportional to 7,330,216.80, 11,018,944.80 and 5,214,950.40

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Solution

The fourth proportional to 7,330,216.80, 11,018,944.80 and 5,214,950.40 is: 7,839,229.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,330,216.80 : 11,018,944.80 = 5,214,950.40 : x
  2. Step 2: Convert to fraction form
    7,330,216.80/11,018,944.80 = 5,214,950.40/x
  3. Step 3: Cross multiply
    7,330,216.80x = 11,018,944.80 × 5,214,950.40
  4. Step 4: Simplify right side
    7,330,216.80x = 57,463,250,592,337.93
  5. Step 5: Solve for x
    x = 57,463,250,592,337.93/7,330,216.80
  6. Step 6: Final answer
    x = 7,839,229.34

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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.