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Finding the Fourth Proportional to 15,032.66, 20,747.26 and 8,658.01

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Solution

The fourth proportional to 15,032.66, 20,747.26 and 8,658.01 is: 11,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.66 : 20,747.26 = 8,658.01 : x
  2. Step 2: Convert to fraction form
    15,032.66/20,747.26 = 8,658.01/x
  3. Step 3: Cross multiply
    15,032.66x = 20,747.26 × 8,658.01
  4. Step 4: Simplify right side
    15,032.66x = 179,629,979.96
  5. Step 5: Solve for x
    x = 179,629,979.96/15,032.66
  6. Step 6: Final answer
    x = 11,949.31

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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.