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Finding the Fourth Proportional to 8,620.26, 11,893.95 and 6,258.30

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Solution

The fourth proportional to 8,620.26, 11,893.95 and 6,258.30 is: 8,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,620.26 : 11,893.95 = 6,258.30 : x
  2. Step 2: Convert to fraction form
    8,620.26/11,893.95 = 6,258.30/x
  3. Step 3: Cross multiply
    8,620.26x = 11,893.95 × 6,258.30
  4. Step 4: Simplify right side
    8,620.26x = 74,435,907.29
  5. Step 5: Solve for x
    x = 74,435,907.29/8,620.26
  6. Step 6: Final answer
    x = 8,635.00

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1.5x scale

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.