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Finding the Fourth Proportional to 19,542.92, 26,959.02 and 11,990.93

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Solution

The fourth proportional to 19,542.92, 26,959.02 and 11,990.93 is: 16,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.92 : 26,959.02 = 11,990.93 : x
  2. Step 2: Convert to fraction form
    19,542.92/26,959.02 = 11,990.93/x
  3. Step 3: Cross multiply
    19,542.92x = 26,959.02 × 11,990.93
  4. Step 4: Simplify right side
    19,542.92x = 323,263,721.69
  5. Step 5: Solve for x
    x = 323,263,721.69/19,542.92
  6. Step 6: Final answer
    x = 16,541.22

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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.