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Finding the Fourth Proportional to 70,608.09, 105,860.85 and 33,148.89

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Solution

The fourth proportional to 70,608.09, 105,860.85 and 33,148.89 is: 49,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.09 : 105,860.85 = 33,148.89 : x
  2. Step 2: Convert to fraction form
    70,608.09/105,860.85 = 33,148.89/x
  3. Step 3: Cross multiply
    70,608.09x = 105,860.85 × 33,148.89
  4. Step 4: Simplify right side
    70,608.09x = 3,509,169,671.96
  5. Step 5: Solve for x
    x = 3,509,169,671.96/70,608.09
  6. Step 6: Final answer
    x = 49,699.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.