Home / 19,289.34-26,615.79-18,305.19

Finding the Fourth Proportional to 19,289.34, 26,615.79 and 18,305.19

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Solution

The fourth proportional to 19,289.34, 26,615.79 and 18,305.19 is: 25,257.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.34 : 26,615.79 = 18,305.19 : x
  2. Step 2: Convert to fraction form
    19,289.34/26,615.79 = 18,305.19/x
  3. Step 3: Cross multiply
    19,289.34x = 26,615.79 × 18,305.19
  4. Step 4: Simplify right side
    19,289.34x = 487,207,092.95
  5. Step 5: Solve for x
    x = 487,207,092.95/19,289.34
  6. Step 6: Final answer
    x = 25,257.84

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Double scale
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Similar ratio
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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.