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Finding the Fourth Proportional to 18,404.79, 25,392.13 and 12,035.11

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Solution

The fourth proportional to 18,404.79, 25,392.13 and 12,035.11 is: 16,604.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.79 : 25,392.13 = 12,035.11 : x
  2. Step 2: Convert to fraction form
    18,404.79/25,392.13 = 12,035.11/x
  3. Step 3: Cross multiply
    18,404.79x = 25,392.13 × 12,035.11
  4. Step 4: Simplify right side
    18,404.79x = 305,596,950.72
  5. Step 5: Solve for x
    x = 305,596,950.72/18,404.79
  6. Step 6: Final answer
    x = 16,604.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.