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Finding the Fourth Proportional to 15,348.70, 22,986.60 and 9,443.80

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Solution

The fourth proportional to 15,348.70, 22,986.60 and 9,443.80 is: 14,143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.70 : 22,986.60 = 9,443.80 : x
  2. Step 2: Convert to fraction form
    15,348.70/22,986.60 = 9,443.80/x
  3. Step 3: Cross multiply
    15,348.70x = 22,986.60 × 9,443.80
  4. Step 4: Simplify right side
    15,348.70x = 217,080,853.08
  5. Step 5: Solve for x
    x = 217,080,853.08/15,348.70
  6. Step 6: Final answer
    x = 14,143.27

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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.