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Finding the Fourth Proportional to 6,783,978.22, 9,361,948.44 and 3,686,500.96

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Solution

The fourth proportional to 6,783,978.22, 9,361,948.44 and 3,686,500.96 is: 5,087,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,783,978.22 : 9,361,948.44 = 3,686,500.96 : x
  2. Step 2: Convert to fraction form
    6,783,978.22/9,361,948.44 = 3,686,500.96/x
  3. Step 3: Cross multiply
    6,783,978.22x = 9,361,948.44 × 3,686,500.96
  4. Step 4: Simplify right side
    6,783,978.22x = 34,512,831,901,950.01
  5. Step 5: Solve for x
    x = 34,512,831,901,950.01/6,783,978.22
  6. Step 6: Final answer
    x = 5,087,403.11

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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.