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Finding the Fourth Proportional to 14,321.76, 21,463.20 and 10,637.88

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Solution

The fourth proportional to 14,321.76, 21,463.20 and 10,637.88 is: 15,942.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,321.76 : 21,463.20 = 10,637.88 : x
  2. Step 2: Convert to fraction form
    14,321.76/21,463.20 = 10,637.88/x
  3. Step 3: Cross multiply
    14,321.76x = 21,463.20 × 10,637.88
  4. Step 4: Simplify right side
    14,321.76x = 228,322,946.02
  5. Step 5: Solve for x
    x = 228,322,946.02/14,321.76
  6. Step 6: Final answer
    x = 15,942.38

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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.