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Finding the Fourth Proportional to 15,058.91, 20,791.01 and 9,683.75

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Solution

The fourth proportional to 15,058.91, 20,791.01 and 9,683.75 is: 13,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.91 : 20,791.01 = 9,683.75 : x
  2. Step 2: Convert to fraction form
    15,058.91/20,791.01 = 9,683.75/x
  3. Step 3: Cross multiply
    15,058.91x = 20,791.01 × 9,683.75
  4. Step 4: Simplify right side
    15,058.91x = 201,335,019.27
  5. Step 5: Solve for x
    x = 201,335,019.27/15,058.91
  6. Step 6: Final answer
    x = 13,369.82

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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.