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Finding the Fourth Proportional to 14,425.89, 19,893.98 and 9,384.33

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Solution

The fourth proportional to 14,425.89, 19,893.98 and 9,384.33 is: 12,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.89 : 19,893.98 = 9,384.33 : x
  2. Step 2: Convert to fraction form
    14,425.89/19,893.98 = 9,384.33/x
  3. Step 3: Cross multiply
    14,425.89x = 19,893.98 × 9,384.33
  4. Step 4: Simplify right side
    14,425.89x = 186,691,626.41
  5. Step 5: Solve for x
    x = 186,691,626.41/14,425.89
  6. Step 6: Final answer
    x = 12,941.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.