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Finding the Fourth Proportional to 8,717.34, 12,029.94 and 4,738.26

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Solution

The fourth proportional to 8,717.34, 12,029.94 and 4,738.26 is: 6,538.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.34 : 12,029.94 = 4,738.26 : x
  2. Step 2: Convert to fraction form
    8,717.34/12,029.94 = 4,738.26/x
  3. Step 3: Cross multiply
    8,717.34x = 12,029.94 × 4,738.26
  4. Step 4: Simplify right side
    8,717.34x = 57,000,983.50
  5. Step 5: Solve for x
    x = 57,000,983.50/8,717.34
  6. Step 6: Final answer
    x = 6,538.80

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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.