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Finding the Fourth Proportional to 14,963.60, 22,434.60 and 8,391.80

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Solution

The fourth proportional to 14,963.60, 22,434.60 and 8,391.80 is: 12,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.60 : 22,434.60 = 8,391.80 : x
  2. Step 2: Convert to fraction form
    14,963.60/22,434.60 = 8,391.80/x
  3. Step 3: Cross multiply
    14,963.60x = 22,434.60 × 8,391.80
  4. Step 4: Simplify right side
    14,963.60x = 188,266,676.28
  5. Step 5: Solve for x
    x = 188,266,676.28/14,963.60
  6. Step 6: Final answer
    x = 12,581.64

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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.