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Finding the Fourth Proportional to 7,557.71, 11,336.52 and 2,940.71

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Solution

The fourth proportional to 7,557.71, 11,336.52 and 2,940.71 is: 4,411.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557.71 : 11,336.52 = 2,940.71 : x
  2. Step 2: Convert to fraction form
    7,557.71/11,336.52 = 2,940.71/x
  3. Step 3: Cross multiply
    7,557.71x = 11,336.52 × 2,940.71
  4. Step 4: Simplify right side
    7,557.71x = 33,337,417.73
  5. Step 5: Solve for x
    x = 33,337,417.73/7,557.71
  6. Step 6: Final answer
    x = 4,411.05

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Double scale
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Similar ratio
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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.