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Finding the Fourth Proportional to 19,525.84, 26,946.12 and 11,143.12

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Solution

The fourth proportional to 19,525.84, 26,946.12 and 11,143.12 is: 15,377.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,525.84 : 26,946.12 = 11,143.12 : x
  2. Step 2: Convert to fraction form
    19,525.84/26,946.12 = 11,143.12/x
  3. Step 3: Cross multiply
    19,525.84x = 26,946.12 × 11,143.12
  4. Step 4: Simplify right side
    19,525.84x = 300,263,848.69
  5. Step 5: Solve for x
    x = 300,263,848.69/19,525.84
  6. Step 6: Final answer
    x = 15,377.77

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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.