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Finding the Fourth Proportional to 30,586.92, 45,871.56 and 8,401.02

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Solution

The fourth proportional to 30,586.92, 45,871.56 and 8,401.02 is: 12,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586.92 : 45,871.56 = 8,401.02 : x
  2. Step 2: Convert to fraction form
    30,586.92/45,871.56 = 8,401.02/x
  3. Step 3: Cross multiply
    30,586.92x = 45,871.56 × 8,401.02
  4. Step 4: Simplify right side
    30,586.92x = 385,367,720.97
  5. Step 5: Solve for x
    x = 385,367,720.97/30,586.92
  6. Step 6: Final answer
    x = 12,599.10

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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.