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Finding the Fourth Proportional to 13,054.98, 18,015.98 and 7,675.97

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Solution

The fourth proportional to 13,054.98, 18,015.98 and 7,675.97 is: 10,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.98 : 18,015.98 = 7,675.97 : x
  2. Step 2: Convert to fraction form
    13,054.98/18,015.98 = 7,675.97/x
  3. Step 3: Cross multiply
    13,054.98x = 18,015.98 × 7,675.97
  4. Step 4: Simplify right side
    13,054.98x = 138,290,128.66
  5. Step 5: Solve for x
    x = 138,290,128.66/13,054.98
  6. Step 6: Final answer
    x = 10,592.90

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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.