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Finding the Fourth Proportional to 9,993.56, 14,988.46 and 3,330.16

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Solution

The fourth proportional to 9,993.56, 14,988.46 and 3,330.16 is: 4,994.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,993.56 : 14,988.46 = 3,330.16 : x
  2. Step 2: Convert to fraction form
    9,993.56/14,988.46 = 3,330.16/x
  3. Step 3: Cross multiply
    9,993.56x = 14,988.46 × 3,330.16
  4. Step 4: Simplify right side
    9,993.56x = 49,913,969.95
  5. Step 5: Solve for x
    x = 49,913,969.95/9,993.56
  6. Step 6: Final answer
    x = 4,994.61

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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.