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Finding the Fourth Proportional to 19,295.80, 26,640.83 and 14,842.82

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Solution

The fourth proportional to 19,295.80, 26,640.83 and 14,842.82 is: 20,492.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,295.80 : 26,640.83 = 14,842.82 : x
  2. Step 2: Convert to fraction form
    19,295.80/26,640.83 = 14,842.82/x
  3. Step 3: Cross multiply
    19,295.80x = 26,640.83 × 14,842.82
  4. Step 4: Simplify right side
    19,295.80x = 395,424,970.13
  5. Step 5: Solve for x
    x = 395,424,970.13/19,295.80
  6. Step 6: Final answer
    x = 20,492.81

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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.