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Finding the Fourth Proportional to 7,170,294.06, 9,895,007.25 and 3,907,109.34

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Solution

The fourth proportional to 7,170,294.06, 9,895,007.25 and 3,907,109.34 is: 5,391,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170,294.06 : 9,895,007.25 = 3,907,109.34 : x
  2. Step 2: Convert to fraction form
    7,170,294.06/9,895,007.25 = 3,907,109.34/x
  3. Step 3: Cross multiply
    7,170,294.06x = 9,895,007.25 × 3,907,109.34
  4. Step 4: Simplify right side
    7,170,294.06x = 38,660,875,245,842.71
  5. Step 5: Solve for x
    x = 38,660,875,245,842.71/7,170,294.06
  6. Step 6: Final answer
    x = 5,391,811.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.