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Finding the Fourth Proportional to 70,562.70, 105,878.79 and 33,125.58

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Solution

The fourth proportional to 70,562.70, 105,878.79 and 33,125.58 is: 49,704.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,562.70 : 105,878.79 = 33,125.58 : x
  2. Step 2: Convert to fraction form
    70,562.70/105,878.79 = 33,125.58/x
  3. Step 3: Cross multiply
    70,562.70x = 105,878.79 × 33,125.58
  4. Step 4: Simplify right side
    70,562.70x = 3,507,296,328.45
  5. Step 5: Solve for x
    x = 3,507,296,328.45/70,562.70
  6. Step 6: Final answer
    x = 49,704.68

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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.