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Finding the Fourth Proportional to 14,595.63, 20,141.64 and 8,930.49

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Solution

The fourth proportional to 14,595.63, 20,141.64 and 8,930.49 is: 12,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,595.63 : 20,141.64 = 8,930.49 : x
  2. Step 2: Convert to fraction form
    14,595.63/20,141.64 = 8,930.49/x
  3. Step 3: Cross multiply
    14,595.63x = 20,141.64 × 8,930.49
  4. Step 4: Simplify right side
    14,595.63x = 179,874,714.60
  5. Step 5: Solve for x
    x = 179,874,714.60/14,595.63
  6. Step 6: Final answer
    x = 12,323.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.