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Finding the Fourth Proportional to 15,758.13, 21,745.93 and 8,588.10

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Solution

The fourth proportional to 15,758.13, 21,745.93 and 8,588.10 is: 11,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.13 : 21,745.93 = 8,588.10 : x
  2. Step 2: Convert to fraction form
    15,758.13/21,745.93 = 8,588.10/x
  3. Step 3: Cross multiply
    15,758.13x = 21,745.93 × 8,588.10
  4. Step 4: Simplify right side
    15,758.13x = 186,756,183.86
  5. Step 5: Solve for x
    x = 186,756,183.86/15,758.13
  6. Step 6: Final answer
    x = 11,851.42

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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.