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Finding the Fourth Proportional to 14,347.40, 19,795.94 and 8,375.68

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Solution

The fourth proportional to 14,347.40, 19,795.94 and 8,375.68 is: 11,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.40 : 19,795.94 = 8,375.68 : x
  2. Step 2: Convert to fraction form
    14,347.40/19,795.94 = 8,375.68/x
  3. Step 3: Cross multiply
    14,347.40x = 19,795.94 × 8,375.68
  4. Step 4: Simplify right side
    14,347.40x = 165,804,458.74
  5. Step 5: Solve for x
    x = 165,804,458.74/14,347.40
  6. Step 6: Final answer
    x = 11,556.41

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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.