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Finding the Fourth Proportional to 13,305,834.20, 19,958,751.30 and 13,305,834.20

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Solution

The fourth proportional to 13,305,834.20, 19,958,751.30 and 13,305,834.20 is: 19,958,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,834.20 : 19,958,751.30 = 13,305,834.20 : x
  2. Step 2: Convert to fraction form
    13,305,834.20/19,958,751.30 = 13,305,834.20/x
  3. Step 3: Cross multiply
    13,305,834.20x = 19,958,751.30 × 13,305,834.20
  4. Step 4: Simplify right side
    13,305,834.20x = 265,567,835,636,834.47
  5. Step 5: Solve for x
    x = 265,567,835,636,834.47/13,305,834.20
  6. Step 6: Final answer
    x = 19,958,751.30

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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.