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Finding the Fourth Proportional to 18,922.27, 26,111.58 and 10,963.12

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Solution

The fourth proportional to 18,922.27, 26,111.58 and 10,963.12 is: 15,128.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.27 : 26,111.58 = 10,963.12 : x
  2. Step 2: Convert to fraction form
    18,922.27/26,111.58 = 10,963.12/x
  3. Step 3: Cross multiply
    18,922.27x = 26,111.58 × 10,963.12
  4. Step 4: Simplify right side
    18,922.27x = 286,264,384.93
  5. Step 5: Solve for x
    x = 286,264,384.93/18,922.27
  6. Step 6: Final answer
    x = 15,128.44

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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.