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Finding the Fourth Proportional to 14,168.63, 21,253.82 and 4,308.63

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Solution

The fourth proportional to 14,168.63, 21,253.82 and 4,308.63 is: 6,463.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.63 : 21,253.82 = 4,308.63 : x
  2. Step 2: Convert to fraction form
    14,168.63/21,253.82 = 4,308.63/x
  3. Step 3: Cross multiply
    14,168.63x = 21,253.82 × 4,308.63
  4. Step 4: Simplify right side
    14,168.63x = 91,574,824.92
  5. Step 5: Solve for x
    x = 91,574,824.92/14,168.63
  6. Step 6: Final answer
    x = 6,463.21

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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.