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Finding the Fourth Proportional to 14,614.54, 21,931.52 and 5,380.54

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Solution

The fourth proportional to 14,614.54, 21,931.52 and 5,380.54 is: 8,074.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,614.54 : 21,931.52 = 5,380.54 : x
  2. Step 2: Convert to fraction form
    14,614.54/21,931.52 = 5,380.54/x
  3. Step 3: Cross multiply
    14,614.54x = 21,931.52 × 5,380.54
  4. Step 4: Simplify right side
    14,614.54x = 118,003,420.62
  5. Step 5: Solve for x
    x = 118,003,420.62/14,614.54
  6. Step 6: Final answer
    x = 8,074.38

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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.