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Finding the Fourth Proportional to 6,720,986.90, 10,081,480.35 and 6,720,986.90

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Solution

The fourth proportional to 6,720,986.90, 10,081,480.35 and 6,720,986.90 is: 10,081,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720,986.90 : 10,081,480.35 = 6,720,986.90 : x
  2. Step 2: Convert to fraction form
    6,720,986.90/10,081,480.35 = 6,720,986.90/x
  3. Step 3: Cross multiply
    6,720,986.90x = 10,081,480.35 × 6,720,986.90
  4. Step 4: Simplify right side
    6,720,986.90x = 67,757,497,364,957.41
  5. Step 5: Solve for x
    x = 67,757,497,364,957.41/6,720,986.90
  6. Step 6: Final answer
    x = 10,081,480.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.