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Finding the Fourth Proportional to 19,773.85, 27,285.52 and 11,814.52

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Solution

The fourth proportional to 19,773.85, 27,285.52 and 11,814.52 is: 16,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.85 : 27,285.52 = 11,814.52 : x
  2. Step 2: Convert to fraction form
    19,773.85/27,285.52 = 11,814.52/x
  3. Step 3: Cross multiply
    19,773.85x = 27,285.52 × 11,814.52
  4. Step 4: Simplify right side
    19,773.85x = 322,365,126.25
  5. Step 5: Solve for x
    x = 322,365,126.25/19,773.85
  6. Step 6: Final answer
    x = 16,302.60

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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.