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Finding the Fourth Proportional to 70,216.40, 105,324.60 and 33,352.40

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Solution

The fourth proportional to 70,216.40, 105,324.60 and 33,352.40 is: 50,028.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,216.40 : 105,324.60 = 33,352.40 : x
  2. Step 2: Convert to fraction form
    70,216.40/105,324.60 = 33,352.40/x
  3. Step 3: Cross multiply
    70,216.40x = 105,324.60 × 33,352.40
  4. Step 4: Simplify right side
    70,216.40x = 3,512,828,189.04
  5. Step 5: Solve for x
    x = 3,512,828,189.04/70,216.40
  6. Step 6: Final answer
    x = 50,028.60

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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.