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Finding the Fourth Proportional to 14,408.63, 21,612.94 and 4,020.38

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Solution

The fourth proportional to 14,408.63, 21,612.94 and 4,020.38 is: 6,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.63 : 21,612.94 = 4,020.38 : x
  2. Step 2: Convert to fraction form
    14,408.63/21,612.94 = 4,020.38/x
  3. Step 3: Cross multiply
    14,408.63x = 21,612.94 × 4,020.38
  4. Step 4: Simplify right side
    14,408.63x = 86,892,113.60
  5. Step 5: Solve for x
    x = 86,892,113.60/14,408.63
  6. Step 6: Final answer
    x = 6,030.56

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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.