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Finding the Fourth Proportional to 6,258,702.72, 8,629,694.40 and 5,805,206.40

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Solution

The fourth proportional to 6,258,702.72, 8,629,694.40 and 5,805,206.40 is: 8,004,399.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,258,702.72 : 8,629,694.40 = 5,805,206.40 : x
  2. Step 2: Convert to fraction form
    6,258,702.72/8,629,694.40 = 5,805,206.40/x
  3. Step 3: Cross multiply
    6,258,702.72x = 8,629,694.40 × 5,805,206.40
  4. Step 4: Simplify right side
    6,258,702.72x = 50,097,157,160,924.16
  5. Step 5: Solve for x
    x = 50,097,157,160,924.16/6,258,702.72
  6. Step 6: Final answer
    x = 8,004,399.54

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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.