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Finding the Fourth Proportional to 33,780.68, 46,624.86 and 19,641.68

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Solution

The fourth proportional to 33,780.68, 46,624.86 and 19,641.68 is: 27,109.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,780.68 : 46,624.86 = 19,641.68 : x
  2. Step 2: Convert to fraction form
    33,780.68/46,624.86 = 19,641.68/x
  3. Step 3: Cross multiply
    33,780.68x = 46,624.86 × 19,641.68
  4. Step 4: Simplify right side
    33,780.68x = 915,790,580.16
  5. Step 5: Solve for x
    x = 915,790,580.16/33,780.68
  6. Step 6: Final answer
    x = 27,109.89

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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.