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Finding the Fourth Proportional to 19,073.70, 28,585.44 and 9,194.94

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Solution

The fourth proportional to 19,073.70, 28,585.44 and 9,194.94 is: 13,780.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.70 : 28,585.44 = 9,194.94 : x
  2. Step 2: Convert to fraction form
    19,073.70/28,585.44 = 9,194.94/x
  3. Step 3: Cross multiply
    19,073.70x = 28,585.44 × 9,194.94
  4. Step 4: Simplify right side
    19,073.70x = 262,841,405.67
  5. Step 5: Solve for x
    x = 262,841,405.67/19,073.70
  6. Step 6: Final answer
    x = 13,780.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.