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Finding the Fourth Proportional to 6,138,661.12, 8,468,664.96 and 5,854,059.52

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Solution

The fourth proportional to 6,138,661.12, 8,468,664.96 and 5,854,059.52 is: 8,076,039.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138,661.12 : 8,468,664.96 = 5,854,059.52 : x
  2. Step 2: Convert to fraction form
    6,138,661.12/8,468,664.96 = 5,854,059.52/x
  3. Step 3: Cross multiply
    6,138,661.12x = 8,468,664.96 × 5,854,059.52
  4. Step 4: Simplify right side
    6,138,661.12x = 49,576,068,730,778.42
  5. Step 5: Solve for x
    x = 49,576,068,730,778.42/6,138,661.12
  6. Step 6: Final answer
    x = 8,076,039.35

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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.