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Finding the Fourth Proportional to 6,949,626.54, 9,590,478.21 and 3,893,862.66

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Solution

The fourth proportional to 6,949,626.54, 9,590,478.21 and 3,893,862.66 is: 5,373,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949,626.54 : 9,590,478.21 = 3,893,862.66 : x
  2. Step 2: Convert to fraction form
    6,949,626.54/9,590,478.21 = 3,893,862.66/x
  3. Step 3: Cross multiply
    6,949,626.54x = 9,590,478.21 × 3,893,862.66
  4. Step 4: Simplify right side
    6,949,626.54x = 37,344,004,993,462.64
  5. Step 5: Solve for x
    x = 37,344,004,993,462.64/6,949,626.54
  6. Step 6: Final answer
    x = 5,373,526.88

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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.