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Finding the Fourth Proportional to 33,919.71, 46,809.75 and 18,813

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Solution

The fourth proportional to 33,919.71, 46,809.75 and 18,813 is: 25,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,919.71 : 46,809.75 = 18,813 : x
  2. Step 2: Convert to fraction form
    33,919.71/46,809.75 = 18,813/x
  3. Step 3: Cross multiply
    33,919.71x = 46,809.75 × 18,813
  4. Step 4: Simplify right side
    33,919.71x = 880,631,826.75
  5. Step 5: Solve for x
    x = 880,631,826.75/33,919.71
  6. Step 6: Final answer
    x = 25,962.25

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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.