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Finding the Fourth Proportional to 28,806.16, 39,750.12 and 16,234

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Solution

The fourth proportional to 28,806.16, 39,750.12 and 16,234 is: 22,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.16 : 39,750.12 = 16,234 : x
  2. Step 2: Convert to fraction form
    28,806.16/39,750.12 = 16,234/x
  3. Step 3: Cross multiply
    28,806.16x = 39,750.12 × 16,234
  4. Step 4: Simplify right side
    28,806.16x = 645,303,448.08
  5. Step 5: Solve for x
    x = 645,303,448.08/28,806.16
  6. Step 6: Final answer
    x = 22,401.58

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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.