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Finding the Fourth Proportional to 8,393,664.60, 12,609,159.30 and 8,076,403.80

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Solution

The fourth proportional to 8,393,664.60, 12,609,159.30 and 8,076,403.80 is: 12,132,562.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393,664.60 : 12,609,159.30 = 8,076,403.80 : x
  2. Step 2: Convert to fraction form
    8,393,664.60/12,609,159.30 = 8,076,403.80/x
  3. Step 3: Cross multiply
    8,393,664.60x = 12,609,159.30 × 8,076,403.80
  4. Step 4: Simplify right side
    8,393,664.60x = 101,836,662,085,325.34
  5. Step 5: Solve for x
    x = 101,836,662,085,325.34/8,393,664.60
  6. Step 6: Final answer
    x = 12,132,562.71

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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.