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Finding the Fourth Proportional to 13,760.01, 20,643.26 and 4,995

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Solution

The fourth proportional to 13,760.01, 20,643.26 and 4,995 is: 7,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.01 : 20,643.26 = 4,995 : x
  2. Step 2: Convert to fraction form
    13,760.01/20,643.26 = 4,995/x
  3. Step 3: Cross multiply
    13,760.01x = 20,643.26 × 4,995
  4. Step 4: Simplify right side
    13,760.01x = 103,113,058.73
  5. Step 5: Solve for x
    x = 103,113,058.73/13,760.01
  6. Step 6: Final answer
    x = 7,493.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.