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Finding the Fourth Proportional to 7,908.46, 10,914.16 and 4,551.20

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Solution

The fourth proportional to 7,908.46, 10,914.16 and 4,551.20 is: 6,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.46 : 10,914.16 = 4,551.20 : x
  2. Step 2: Convert to fraction form
    7,908.46/10,914.16 = 4,551.20/x
  3. Step 3: Cross multiply
    7,908.46x = 10,914.16 × 4,551.20
  4. Step 4: Simplify right side
    7,908.46x = 49,672,524.99
  5. Step 5: Solve for x
    x = 49,672,524.99/7,908.46
  6. Step 6: Final answer
    x = 6,280.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.