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Finding the Fourth Proportional to 10,500.84, 15,754.46 and 4,958.44

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Solution

The fourth proportional to 10,500.84, 15,754.46 and 4,958.44 is: 7,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.84 : 15,754.46 = 4,958.44 : x
  2. Step 2: Convert to fraction form
    10,500.84/15,754.46 = 4,958.44/x
  3. Step 3: Cross multiply
    10,500.84x = 15,754.46 × 4,958.44
  4. Step 4: Simplify right side
    10,500.84x = 78,117,544.64
  5. Step 5: Solve for x
    x = 78,117,544.64/10,500.84
  6. Step 6: Final answer
    x = 7,439.17

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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.