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Finding the Fourth Proportional to 26,331, 36,336.78 and 14,555

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Solution

The fourth proportional to 26,331, 36,336.78 and 14,555 is: 20,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,331 : 36,336.78 = 14,555 : x
  2. Step 2: Convert to fraction form
    26,331/36,336.78 = 14,555/x
  3. Step 3: Cross multiply
    26,331x = 36,336.78 × 14,555
  4. Step 4: Simplify right side
    26,331x = 528,881,832.90
  5. Step 5: Solve for x
    x = 528,881,832.90/26,331
  6. Step 6: Final answer
    x = 20,085.90

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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.