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Finding the Fourth Proportional to 14,347.87, 19,799.92 and 7,974.48

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Solution

The fourth proportional to 14,347.87, 19,799.92 and 7,974.48 is: 11,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.87 : 19,799.92 = 7,974.48 : x
  2. Step 2: Convert to fraction form
    14,347.87/19,799.92 = 7,974.48/x
  3. Step 3: Cross multiply
    14,347.87x = 19,799.92 × 7,974.48
  4. Step 4: Simplify right side
    14,347.87x = 157,894,127.83
  5. Step 5: Solve for x
    x = 157,894,127.83/14,347.87
  6. Step 6: Final answer
    x = 11,004.71

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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.