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Finding the Fourth Proportional to 11,955.92, 17,925.17 and 5,628.60

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Solution

The fourth proportional to 11,955.92, 17,925.17 and 5,628.60 is: 8,438.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.92 : 17,925.17 = 5,628.60 : x
  2. Step 2: Convert to fraction form
    11,955.92/17,925.17 = 5,628.60/x
  3. Step 3: Cross multiply
    11,955.92x = 17,925.17 × 5,628.60
  4. Step 4: Simplify right side
    11,955.92x = 100,893,583.72
  5. Step 5: Solve for x
    x = 100,893,583.72/11,955.92
  6. Step 6: Final answer
    x = 8,438.80

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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.