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Finding the Fourth Proportional to 14,893.98, 20,406.62 and 14,709.51

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Solution

The fourth proportional to 14,893.98, 20,406.62 and 14,709.51 is: 20,153.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,893.98 : 20,406.62 = 14,709.51 : x
  2. Step 2: Convert to fraction form
    14,893.98/20,406.62 = 14,709.51/x
  3. Step 3: Cross multiply
    14,893.98x = 20,406.62 × 14,709.51
  4. Step 4: Simplify right side
    14,893.98x = 300,171,307.41
  5. Step 5: Solve for x
    x = 300,171,307.41/14,893.98
  6. Step 6: Final answer
    x = 20,153.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.