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Finding the Fourth Proportional to 6,913,182.80, 10,361,479.80 and 3,545,656.40

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Solution

The fourth proportional to 6,913,182.80, 10,361,479.80 and 3,545,656.40 is: 5,314,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,913,182.80 : 10,361,479.80 = 3,545,656.40 : x
  2. Step 2: Convert to fraction form
    6,913,182.80/10,361,479.80 = 3,545,656.40/x
  3. Step 3: Cross multiply
    6,913,182.80x = 10,361,479.80 × 3,545,656.40
  4. Step 4: Simplify right side
    6,913,182.80x = 36,738,247,166,340.72
  5. Step 5: Solve for x
    x = 36,738,247,166,340.72/6,913,182.80
  6. Step 6: Final answer
    x = 5,314,230.54

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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.