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Finding the Fourth Proportional to 3,333.06, 5,000.46 and 993.12

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Solution

The fourth proportional to 3,333.06, 5,000.46 and 993.12 is: 1,489.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.06 : 5,000.46 = 993.12 : x
  2. Step 2: Convert to fraction form
    3,333.06/5,000.46 = 993.12/x
  3. Step 3: Cross multiply
    3,333.06x = 5,000.46 × 993.12
  4. Step 4: Simplify right side
    3,333.06x = 4,966,056.84
  5. Step 5: Solve for x
    x = 4,966,056.84/3,333.06
  6. Step 6: Final answer
    x = 1,489.94

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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.