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Finding the Fourth Proportional to 37,910.40, 56,865.70 and 11,615.16

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Solution

The fourth proportional to 37,910.40, 56,865.70 and 11,615.16 is: 17,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,910.40 : 56,865.70 = 11,615.16 : x
  2. Step 2: Convert to fraction form
    37,910.40/56,865.70 = 11,615.16/x
  3. Step 3: Cross multiply
    37,910.40x = 56,865.70 × 11,615.16
  4. Step 4: Simplify right side
    37,910.40x = 660,504,204.01
  5. Step 5: Solve for x
    x = 660,504,204.01/37,910.40
  6. Step 6: Final answer
    x = 17,422.77

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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.