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Finding the Fourth Proportional to 19,999.94, 27,590.74 and 11,614.82

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Solution

The fourth proportional to 19,999.94, 27,590.74 and 11,614.82 is: 16,023.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,999.94 : 27,590.74 = 11,614.82 : x
  2. Step 2: Convert to fraction form
    19,999.94/27,590.74 = 11,614.82/x
  3. Step 3: Cross multiply
    19,999.94x = 27,590.74 × 11,614.82
  4. Step 4: Simplify right side
    19,999.94x = 320,461,478.77
  5. Step 5: Solve for x
    x = 320,461,478.77/19,999.94
  6. Step 6: Final answer
    x = 16,023.12

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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.