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Finding the Fourth Proportional to 7,472,834.20, 11,191,536.60 and 7,472,834.20

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Solution

The fourth proportional to 7,472,834.20, 11,191,536.60 and 7,472,834.20 is: 11,191,536.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472,834.20 : 11,191,536.60 = 7,472,834.20 : x
  2. Step 2: Convert to fraction form
    7,472,834.20/11,191,536.60 = 7,472,834.20/x
  3. Step 3: Cross multiply
    7,472,834.20x = 11,191,536.60 × 7,472,834.20
  4. Step 4: Simplify right side
    7,472,834.20x = 83,632,497,455,031.72
  5. Step 5: Solve for x
    x = 83,632,497,455,031.72/7,472,834.20
  6. Step 6: Final answer
    x = 11,191,536.60

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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.