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Finding the Fourth Proportional to 7,114,738.98, 9,818,337.71 and 3,851,551.29

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Solution

The fourth proportional to 7,114,738.98, 9,818,337.71 and 3,851,551.29 is: 5,315,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114,738.98 : 9,818,337.71 = 3,851,551.29 : x
  2. Step 2: Convert to fraction form
    7,114,738.98/9,818,337.71 = 3,851,551.29/x
  3. Step 3: Cross multiply
    7,114,738.98x = 9,818,337.71 × 3,851,551.29
  4. Step 4: Simplify right side
    7,114,738.98x = 37,815,831,253,348.39
  5. Step 5: Solve for x
    x = 37,815,831,253,348.39/7,114,738.98
  6. Step 6: Final answer
    x = 5,315,139.65

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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.