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Finding the Fourth Proportional to 13,589.88, 18,746.07 and 8,546.10

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Solution

The fourth proportional to 13,589.88, 18,746.07 and 8,546.10 is: 11,788.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.88 : 18,746.07 = 8,546.10 : x
  2. Step 2: Convert to fraction form
    13,589.88/18,746.07 = 8,546.10/x
  3. Step 3: Cross multiply
    13,589.88x = 18,746.07 × 8,546.10
  4. Step 4: Simplify right side
    13,589.88x = 160,205,788.83
  5. Step 5: Solve for x
    x = 160,205,788.83/13,589.88
  6. Step 6: Final answer
    x = 11,788.61

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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.