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Finding the Fourth Proportional to 11,662,859.60, 17,489,040.60 and 4,472,003.60

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Solution

The fourth proportional to 11,662,859.60, 17,489,040.60 and 4,472,003.60 is: 6,705,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,662,859.60 : 17,489,040.60 = 4,472,003.60 : x
  2. Step 2: Convert to fraction form
    11,662,859.60/17,489,040.60 = 4,472,003.60/x
  3. Step 3: Cross multiply
    11,662,859.60x = 17,489,040.60 × 4,472,003.60
  4. Step 4: Simplify right side
    11,662,859.60x = 78,211,052,523,746.16
  5. Step 5: Solve for x
    x = 78,211,052,523,746.16/11,662,859.60
  6. Step 6: Final answer
    x = 6,705,992.80

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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.