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Finding the Fourth Proportional to 14,636.61, 21,949.41 and 4,640.19

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Solution

The fourth proportional to 14,636.61, 21,949.41 and 4,640.19 is: 6,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.61 : 21,949.41 = 4,640.19 : x
  2. Step 2: Convert to fraction form
    14,636.61/21,949.41 = 4,640.19/x
  3. Step 3: Cross multiply
    14,636.61x = 21,949.41 × 4,640.19
  4. Step 4: Simplify right side
    14,636.61x = 101,849,432.79
  5. Step 5: Solve for x
    x = 101,849,432.79/14,636.61
  6. Step 6: Final answer
    x = 6,958.54

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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.