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Finding the Fourth Proportional to 19,103.78, 26,362.03 and 10,605.41

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Solution

The fourth proportional to 19,103.78, 26,362.03 and 10,605.41 is: 14,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.78 : 26,362.03 = 10,605.41 : x
  2. Step 2: Convert to fraction form
    19,103.78/26,362.03 = 10,605.41/x
  3. Step 3: Cross multiply
    19,103.78x = 26,362.03 × 10,605.41
  4. Step 4: Simplify right side
    19,103.78x = 279,580,031.29
  5. Step 5: Solve for x
    x = 279,580,031.29/19,103.78
  6. Step 6: Final answer
    x = 14,634.80

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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.