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Finding the Fourth Proportional to 13,210,367.05, 19,815,550.58 and 13,210,367.05

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Solution

The fourth proportional to 13,210,367.05, 19,815,550.58 and 13,210,367.05 is: 19,815,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,367.05 : 19,815,550.58 = 13,210,367.05 : x
  2. Step 2: Convert to fraction form
    13,210,367.05/19,815,550.58 = 13,210,367.05/x
  3. Step 3: Cross multiply
    13,210,367.05x = 19,815,550.58 × 13,210,367.05
  4. Step 4: Simplify right side
    13,210,367.05x = 261,770,696,459,640.38
  5. Step 5: Solve for x
    x = 261,770,696,459,640.38/13,210,367.05
  6. Step 6: Final answer
    x = 19,815,550.58

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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.