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Finding the Fourth Proportional to 11,865.96, 17,798.94 and 4,074.72

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Solution

The fourth proportional to 11,865.96, 17,798.94 and 4,074.72 is: 6,112.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,865.96 : 17,798.94 = 4,074.72 : x
  2. Step 2: Convert to fraction form
    11,865.96/17,798.94 = 4,074.72/x
  3. Step 3: Cross multiply
    11,865.96x = 17,798.94 × 4,074.72
  4. Step 4: Simplify right side
    11,865.96x = 72,525,696.80
  5. Step 5: Solve for x
    x = 72,525,696.80/11,865.96
  6. Step 6: Final answer
    x = 6,112.08

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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.