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Finding the Fourth Proportional to 7,393,869.60, 11,099,098.80 and 5,718,400.80

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Solution

The fourth proportional to 7,393,869.60, 11,099,098.80 and 5,718,400.80 is: 8,584,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,393,869.60 : 11,099,098.80 = 5,718,400.80 : x
  2. Step 2: Convert to fraction form
    7,393,869.60/11,099,098.80 = 5,718,400.80/x
  3. Step 3: Cross multiply
    7,393,869.60x = 11,099,098.80 × 5,718,400.80
  4. Step 4: Simplify right side
    7,393,869.60x = 63,469,095,457,199.04
  5. Step 5: Solve for x
    x = 63,469,095,457,199.04/7,393,869.60
  6. Step 6: Final answer
    x = 8,584,016.07

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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.