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Finding the Fourth Proportional to 33,920.21, 46,810.24 and 18,813.11

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Solution

The fourth proportional to 33,920.21, 46,810.24 and 18,813.11 is: 25,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,920.21 : 46,810.24 = 18,813.11 : x
  2. Step 2: Convert to fraction form
    33,920.21/46,810.24 = 18,813.11/x
  3. Step 3: Cross multiply
    33,920.21x = 46,810.24 × 18,813.11
  4. Step 4: Simplify right side
    33,920.21x = 880,645,913.16
  5. Step 5: Solve for x
    x = 880,645,913.16/33,920.21
  6. Step 6: Final answer
    x = 25,962.28

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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.