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Finding the Fourth Proportional to 29,719.21, 44,586.55 and 8,658.76

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Solution

The fourth proportional to 29,719.21, 44,586.55 and 8,658.76 is: 12,990.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,719.21 : 44,586.55 = 8,658.76 : x
  2. Step 2: Convert to fraction form
    29,719.21/44,586.55 = 8,658.76/x
  3. Step 3: Cross multiply
    29,719.21x = 44,586.55 × 8,658.76
  4. Step 4: Simplify right side
    29,719.21x = 386,064,235.68
  5. Step 5: Solve for x
    x = 386,064,235.68/29,719.21
  6. Step 6: Final answer
    x = 12,990.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.