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Finding the Fourth Proportional to 33,783.40, 46,622.88 and 19,445.40

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Solution

The fourth proportional to 33,783.40, 46,622.88 and 19,445.40 is: 26,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,783.40 : 46,622.88 = 19,445.40 : x
  2. Step 2: Convert to fraction form
    33,783.40/46,622.88 = 19,445.40/x
  3. Step 3: Cross multiply
    33,783.40x = 46,622.88 × 19,445.40
  4. Step 4: Simplify right side
    33,783.40x = 906,600,550.75
  5. Step 5: Solve for x
    x = 906,600,550.75/33,783.40
  6. Step 6: Final answer
    x = 26,835.68

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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.