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Finding the Fourth Proportional to 18,884.42, 26,060.43 and 10,500.92

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Solution

The fourth proportional to 18,884.42, 26,060.43 and 10,500.92 is: 14,491.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,884.42 : 26,060.43 = 10,500.92 : x
  2. Step 2: Convert to fraction form
    18,884.42/26,060.43 = 10,500.92/x
  3. Step 3: Cross multiply
    18,884.42x = 26,060.43 × 10,500.92
  4. Step 4: Simplify right side
    18,884.42x = 273,658,490.60
  5. Step 5: Solve for x
    x = 273,658,490.60/18,884.42
  6. Step 6: Final answer
    x = 14,491.23

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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.