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Finding the Fourth Proportional to 19,189.92, 26,489.52 and 14,999.52

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Solution

The fourth proportional to 19,189.92, 26,489.52 and 14,999.52 is: 20,705.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.92 : 26,489.52 = 14,999.52 : x
  2. Step 2: Convert to fraction form
    19,189.92/26,489.52 = 14,999.52/x
  3. Step 3: Cross multiply
    19,189.92x = 26,489.52 × 14,999.52
  4. Step 4: Simplify right side
    19,189.92x = 397,330,085.03
  5. Step 5: Solve for x
    x = 397,330,085.03/19,189.92
  6. Step 6: Final answer
    x = 20,705.15

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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.