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Finding the Fourth Proportional to 7,908.39, 10,914.05 and 4,551.13

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Solution

The fourth proportional to 7,908.39, 10,914.05 and 4,551.13 is: 6,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.39 : 10,914.05 = 4,551.13 : x
  2. Step 2: Convert to fraction form
    7,908.39/10,914.05 = 4,551.13/x
  3. Step 3: Cross multiply
    7,908.39x = 10,914.05 × 4,551.13
  4. Step 4: Simplify right side
    7,908.39x = 49,671,293.35
  5. Step 5: Solve for x
    x = 49,671,293.35/7,908.39
  6. Step 6: Final answer
    x = 6,280.83

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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.