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Finding the Fourth Proportional to 13,593.52, 18,746.78 and 8,808.60

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Solution

The fourth proportional to 13,593.52, 18,746.78 and 8,808.60 is: 12,147.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,593.52 : 18,746.78 = 8,808.60 : x
  2. Step 2: Convert to fraction form
    13,593.52/18,746.78 = 8,808.60/x
  3. Step 3: Cross multiply
    13,593.52x = 18,746.78 × 8,808.60
  4. Step 4: Simplify right side
    13,593.52x = 165,132,886.31
  5. Step 5: Solve for x
    x = 165,132,886.31/13,593.52
  6. Step 6: Final answer
    x = 12,147.91

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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.