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Finding the Fourth Proportional to 5,362,981.95, 7,401,061.08 and 2,915,757.66

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Solution

The fourth proportional to 5,362,981.95, 7,401,061.08 and 2,915,757.66 is: 4,023,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362,981.95 : 7,401,061.08 = 2,915,757.66 : x
  2. Step 2: Convert to fraction form
    5,362,981.95/7,401,061.08 = 2,915,757.66/x
  3. Step 3: Cross multiply
    5,362,981.95x = 7,401,061.08 × 2,915,757.66
  4. Step 4: Simplify right side
    5,362,981.95x = 21,579,700,536,137.88
  5. Step 5: Solve for x
    x = 21,579,700,536,137.88/5,362,981.95
  6. Step 6: Final answer
    x = 4,023,824.94

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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.