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Finding the Fourth Proportional to 18,883.68, 26,059.50 and 10,500

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Solution

The fourth proportional to 18,883.68, 26,059.50 and 10,500 is: 14,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.68 : 26,059.50 = 10,500 : x
  2. Step 2: Convert to fraction form
    18,883.68/26,059.50 = 10,500/x
  3. Step 3: Cross multiply
    18,883.68x = 26,059.50 × 10,500
  4. Step 4: Simplify right side
    18,883.68x = 273,624,750
  5. Step 5: Solve for x
    x = 273,624,750/18,883.68
  6. Step 6: Final answer
    x = 14,490.01

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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.