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Finding the Fourth Proportional to 6,908,974.80, 10,347,715.80 and 4,074,622.80

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Solution

The fourth proportional to 6,908,974.80, 10,347,715.80 and 4,074,622.80 is: 6,102,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,908,974.80 : 10,347,715.80 = 4,074,622.80 : x
  2. Step 2: Convert to fraction form
    6,908,974.80/10,347,715.80 = 4,074,622.80/x
  3. Step 3: Cross multiply
    6,908,974.80x = 10,347,715.80 × 4,074,622.80
  4. Step 4: Simplify right side
    6,908,974.80x = 42,163,038,726,600.24
  5. Step 5: Solve for x
    x = 42,163,038,726,600.24/6,908,974.80
  6. Step 6: Final answer
    x = 6,102,647.64

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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.