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Finding the Fourth Proportional to 18,950.01, 28,389.47 and 15,849.93

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Solution

The fourth proportional to 18,950.01, 28,389.47 and 15,849.93 is: 23,745.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.01 : 28,389.47 = 15,849.93 : x
  2. Step 2: Convert to fraction form
    18,950.01/28,389.47 = 15,849.93/x
  3. Step 3: Cross multiply
    18,950.01x = 28,389.47 × 15,849.93
  4. Step 4: Simplify right side
    18,950.01x = 449,971,228.60
  5. Step 5: Solve for x
    x = 449,971,228.60/18,950.01
  6. Step 6: Final answer
    x = 23,745.18

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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.