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Finding the Fourth Proportional to 19,556.63, 26,952 and 13,891.59

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Solution

The fourth proportional to 19,556.63, 26,952 and 13,891.59 is: 19,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,556.63 : 26,952 = 13,891.59 : x
  2. Step 2: Convert to fraction form
    19,556.63/26,952 = 13,891.59/x
  3. Step 3: Cross multiply
    19,556.63x = 26,952 × 13,891.59
  4. Step 4: Simplify right side
    19,556.63x = 374,406,133.68
  5. Step 5: Solve for x
    x = 374,406,133.68/19,556.63
  6. Step 6: Final answer
    x = 19,144.72

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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.