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Finding the Fourth Proportional to 19,045.95, 28,568.93 and 5,194.95

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Solution

The fourth proportional to 19,045.95, 28,568.93 and 5,194.95 is: 7,792.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,045.95 : 28,568.93 = 5,194.95 : x
  2. Step 2: Convert to fraction form
    19,045.95/28,568.93 = 5,194.95/x
  3. Step 3: Cross multiply
    19,045.95x = 28,568.93 × 5,194.95
  4. Step 4: Simplify right side
    19,045.95x = 148,414,162.90
  5. Step 5: Solve for x
    x = 148,414,162.90/19,045.95
  6. Step 6: Final answer
    x = 7,792.43

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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.