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Finding the Fourth Proportional to 14,464.55, 21,709.40 and 8,237.09

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Solution

The fourth proportional to 14,464.55, 21,709.40 and 8,237.09 is: 12,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,464.55 : 21,709.40 = 8,237.09 : x
  2. Step 2: Convert to fraction form
    14,464.55/21,709.40 = 8,237.09/x
  3. Step 3: Cross multiply
    14,464.55x = 21,709.40 × 8,237.09
  4. Step 4: Simplify right side
    14,464.55x = 178,822,281.65
  5. Step 5: Solve for x
    x = 178,822,281.65/14,464.55
  6. Step 6: Final answer
    x = 12,362.80

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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.