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Finding the Fourth Proportional to 12,348.88, 18,523.09 and 4,955.00

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Solution

The fourth proportional to 12,348.88, 18,523.09 and 4,955.00 is: 7,432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,348.88 : 18,523.09 = 4,955.00 : x
  2. Step 2: Convert to fraction form
    12,348.88/18,523.09 = 4,955.00/x
  3. Step 3: Cross multiply
    12,348.88x = 18,523.09 × 4,955.00
  4. Step 4: Simplify right side
    12,348.88x = 91,781,900.85
  5. Step 5: Solve for x
    x = 91,781,900.85/12,348.88
  6. Step 6: Final answer
    x = 7,432.41

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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.