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Finding the Fourth Proportional to 23,745.80, 35,618.70 and 11,457.80

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Solution

The fourth proportional to 23,745.80, 35,618.70 and 11,457.80 is: 17,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,745.80 : 35,618.70 = 11,457.80 : x
  2. Step 2: Convert to fraction form
    23,745.80/35,618.70 = 11,457.80/x
  3. Step 3: Cross multiply
    23,745.80x = 35,618.70 × 11,457.80
  4. Step 4: Simplify right side
    23,745.80x = 408,111,940.86
  5. Step 5: Solve for x
    x = 408,111,940.86/23,745.80
  6. Step 6: Final answer
    x = 17,186.70

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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.