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Finding the Fourth Proportional to 6,653,112.60, 9,965,672.10 and 5,533,368.60

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Solution

The fourth proportional to 6,653,112.60, 9,965,672.10 and 5,533,368.60 is: 8,288,411.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,653,112.60 : 9,965,672.10 = 5,533,368.60 : x
  2. Step 2: Convert to fraction form
    6,653,112.60/9,965,672.10 = 5,533,368.60/x
  3. Step 3: Cross multiply
    6,653,112.60x = 9,965,672.10 × 5,533,368.60
  4. Step 4: Simplify right side
    6,653,112.60x = 55,143,737,076,036.05
  5. Step 5: Solve for x
    x = 55,143,737,076,036.05/6,653,112.60
  6. Step 6: Final answer
    x = 8,288,411.81

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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.