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Finding the Fourth Proportional to 14,662.85, 21,994.32 and 3,569.54

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Solution

The fourth proportional to 14,662.85, 21,994.32 and 3,569.54 is: 5,354.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,662.85 : 21,994.32 = 3,569.54 : x
  2. Step 2: Convert to fraction form
    14,662.85/21,994.32 = 3,569.54/x
  3. Step 3: Cross multiply
    14,662.85x = 21,994.32 × 3,569.54
  4. Step 4: Simplify right side
    14,662.85x = 78,509,605.01
  5. Step 5: Solve for x
    x = 78,509,605.01/14,662.85
  6. Step 6: Final answer
    x = 5,354.32

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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.