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Finding the Fourth Proportional to 19,162.99, 28,719.54 and 9,795.13

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Solution

The fourth proportional to 19,162.99, 28,719.54 and 9,795.13 is: 14,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,162.99 : 28,719.54 = 9,795.13 : x
  2. Step 2: Convert to fraction form
    19,162.99/28,719.54 = 9,795.13/x
  3. Step 3: Cross multiply
    19,162.99x = 28,719.54 × 9,795.13
  4. Step 4: Simplify right side
    19,162.99x = 281,311,627.84
  5. Step 5: Solve for x
    x = 281,311,627.84/19,162.99
  6. Step 6: Final answer
    x = 14,679.94

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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.