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Finding the Fourth Proportional to 33,820.80, 46,672.80 and 18,916.80

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Solution

The fourth proportional to 33,820.80, 46,672.80 and 18,916.80 is: 26,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,820.80 : 46,672.80 = 18,916.80 : x
  2. Step 2: Convert to fraction form
    33,820.80/46,672.80 = 18,916.80/x
  3. Step 3: Cross multiply
    33,820.80x = 46,672.80 × 18,916.80
  4. Step 4: Simplify right side
    33,820.80x = 882,900,023.04
  5. Step 5: Solve for x
    x = 882,900,023.04/33,820.80
  6. Step 6: Final answer
    x = 26,105.24

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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.