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Finding the Fourth Proportional to 19,596.70, 27,024.78 and 12,887.98

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Solution

The fourth proportional to 19,596.70, 27,024.78 and 12,887.98 is: 17,773.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,596.70 : 27,024.78 = 12,887.98 : x
  2. Step 2: Convert to fraction form
    19,596.70/27,024.78 = 12,887.98/x
  3. Step 3: Cross multiply
    19,596.70x = 27,024.78 × 12,887.98
  4. Step 4: Simplify right side
    19,596.70x = 348,294,824.14
  5. Step 5: Solve for x
    x = 348,294,824.14/19,596.70
  6. Step 6: Final answer
    x = 17,773.14

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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.