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Finding the Fourth Proportional to 14,407.89, 21,636.54 and 8,893.82

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Solution

The fourth proportional to 14,407.89, 21,636.54 and 8,893.82 is: 13,355.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,407.89 : 21,636.54 = 8,893.82 : x
  2. Step 2: Convert to fraction form
    14,407.89/21,636.54 = 8,893.82/x
  3. Step 3: Cross multiply
    14,407.89x = 21,636.54 × 8,893.82
  4. Step 4: Simplify right side
    14,407.89x = 192,431,384.00
  5. Step 5: Solve for x
    x = 192,431,384.00/14,407.89
  6. Step 6: Final answer
    x = 13,355.97

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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.