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Finding the Fourth Proportional to 8,582,976, 12,854,868.48 and 4,098,401.28

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Solution

The fourth proportional to 8,582,976, 12,854,868.48 and 4,098,401.28 is: 6,138,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,582,976 : 12,854,868.48 = 4,098,401.28 : x
  2. Step 2: Convert to fraction form
    8,582,976/12,854,868.48 = 4,098,401.28/x
  3. Step 3: Cross multiply
    8,582,976x = 12,854,868.48 × 4,098,401.28
  4. Step 4: Simplify right side
    8,582,976x = 52,684,409,432,663.66
  5. Step 5: Solve for x
    x = 52,684,409,432,663.66/8,582,976
  6. Step 6: Final answer
    x = 6,138,244.99

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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.