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Finding the Fourth Proportional to 14,930.76, 20,593.92 and 12,937.80

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Solution

The fourth proportional to 14,930.76, 20,593.92 and 12,937.80 is: 17,845.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,930.76 : 20,593.92 = 12,937.80 : x
  2. Step 2: Convert to fraction form
    14,930.76/20,593.92 = 12,937.80/x
  3. Step 3: Cross multiply
    14,930.76x = 20,593.92 × 12,937.80
  4. Step 4: Simplify right side
    14,930.76x = 266,440,018.18
  5. Step 5: Solve for x
    x = 266,440,018.18/14,930.76
  6. Step 6: Final answer
    x = 17,845.04

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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.