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Finding the Fourth Proportional to 13,093.98, 18,069.44 and 7,125.78

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Solution

The fourth proportional to 13,093.98, 18,069.44 and 7,125.78 is: 9,833.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,093.98 : 18,069.44 = 7,125.78 : x
  2. Step 2: Convert to fraction form
    13,093.98/18,069.44 = 7,125.78/x
  3. Step 3: Cross multiply
    13,093.98x = 18,069.44 × 7,125.78
  4. Step 4: Simplify right side
    13,093.98x = 128,758,854.16
  5. Step 5: Solve for x
    x = 128,758,854.16/13,093.98
  6. Step 6: Final answer
    x = 9,833.44

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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.