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Finding the Fourth Proportional to 7,276.94, 10,916.62 and 2,894.44

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Solution

The fourth proportional to 7,276.94, 10,916.62 and 2,894.44 is: 4,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,276.94 : 10,916.62 = 2,894.44 : x
  2. Step 2: Convert to fraction form
    7,276.94/10,916.62 = 2,894.44/x
  3. Step 3: Cross multiply
    7,276.94x = 10,916.62 × 2,894.44
  4. Step 4: Simplify right side
    7,276.94x = 31,597,501.59
  5. Step 5: Solve for x
    x = 31,597,501.59/7,276.94
  6. Step 6: Final answer
    x = 4,342.14

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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.