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Finding the Fourth Proportional to 18,735.99, 28,077.93 and 14,556.93

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Solution

The fourth proportional to 18,735.99, 28,077.93 and 14,556.93 is: 21,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.99 : 28,077.93 = 14,556.93 : x
  2. Step 2: Convert to fraction form
    18,735.99/28,077.93 = 14,556.93/x
  3. Step 3: Cross multiply
    18,735.99x = 28,077.93 × 14,556.93
  4. Step 4: Simplify right side
    18,735.99x = 408,728,461.55
  5. Step 5: Solve for x
    x = 408,728,461.55/18,735.99
  6. Step 6: Final answer
    x = 21,815.15

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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.