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Finding the Fourth Proportional to 15,758.10, 21,745.88 and 8,588.07

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Solution

The fourth proportional to 15,758.10, 21,745.88 and 8,588.07 is: 11,851.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,758.10 : 21,745.88 = 8,588.07 : x
  2. Step 2: Convert to fraction form
    15,758.10/21,745.88 = 8,588.07/x
  3. Step 3: Cross multiply
    15,758.10x = 21,745.88 × 8,588.07
  4. Step 4: Simplify right side
    15,758.10x = 186,755,215.49
  5. Step 5: Solve for x
    x = 186,755,215.49/15,758.10
  6. Step 6: Final answer
    x = 11,851.38

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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.