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Finding the Fourth Proportional to 8,693,929.70, 13,040,894.55 and 5,460,668.90

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Solution

The fourth proportional to 8,693,929.70, 13,040,894.55 and 5,460,668.90 is: 8,191,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693,929.70 : 13,040,894.55 = 5,460,668.90 : x
  2. Step 2: Convert to fraction form
    8,693,929.70/13,040,894.55 = 5,460,668.90/x
  3. Step 3: Cross multiply
    8,693,929.70x = 13,040,894.55 × 5,460,668.90
  4. Step 4: Simplify right side
    8,693,929.70x = 71,212,007,297,364.50
  5. Step 5: Solve for x
    x = 71,212,007,297,364.50/8,693,929.70
  6. Step 6: Final answer
    x = 8,191,003.35

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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.