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Finding the Fourth Proportional to 6,657,745.06, 9,986,684.40 and 2,108,707.30

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Solution

The fourth proportional to 6,657,745.06, 9,986,684.40 and 2,108,707.30 is: 3,163,082.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,657,745.06 : 9,986,684.40 = 2,108,707.30 : x
  2. Step 2: Convert to fraction form
    6,657,745.06/9,986,684.40 = 2,108,707.30/x
  3. Step 3: Cross multiply
    6,657,745.06x = 9,986,684.40 × 2,108,707.30
  4. Step 4: Simplify right side
    6,657,745.06x = 21,058,994,297,076.12
  5. Step 5: Solve for x
    x = 21,058,994,297,076.12/6,657,745.06
  6. Step 6: Final answer
    x = 3,163,082.11

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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.