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Finding the Fourth Proportional to 23,940.70, 35,911.07 and 11,457.79

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Solution

The fourth proportional to 23,940.70, 35,911.07 and 11,457.79 is: 17,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,940.70 : 35,911.07 = 11,457.79 : x
  2. Step 2: Convert to fraction form
    23,940.70/35,911.07 = 11,457.79/x
  3. Step 3: Cross multiply
    23,940.70x = 35,911.07 × 11,457.79
  4. Step 4: Simplify right side
    23,940.70x = 411,461,441.45
  5. Step 5: Solve for x
    x = 411,461,441.45/23,940.70
  6. Step 6: Final answer
    x = 17,186.69

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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.