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Finding the Fourth Proportional to 8,717.34, 12,029.90 and 4,738.46

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Solution

The fourth proportional to 8,717.34, 12,029.90 and 4,738.46 is: 6,539.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.34 : 12,029.90 = 4,738.46 : x
  2. Step 2: Convert to fraction form
    8,717.34/12,029.90 = 4,738.46/x
  3. Step 3: Cross multiply
    8,717.34x = 12,029.90 × 4,738.46
  4. Step 4: Simplify right side
    8,717.34x = 57,003,199.95
  5. Step 5: Solve for x
    x = 57,003,199.95/8,717.34
  6. Step 6: Final answer
    x = 6,539.06

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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.