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Finding the Fourth Proportional to 19,076.52, 28,606.86 and 7,383

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Solution

The fourth proportional to 19,076.52, 28,606.86 and 7,383 is: 11,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,076.52 : 28,606.86 = 7,383 : x
  2. Step 2: Convert to fraction form
    19,076.52/28,606.86 = 7,383/x
  3. Step 3: Cross multiply
    19,076.52x = 28,606.86 × 7,383
  4. Step 4: Simplify right side
    19,076.52x = 211,204,447.38
  5. Step 5: Solve for x
    x = 211,204,447.38/19,076.52
  6. Step 6: Final answer
    x = 11,071.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.