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Finding the Fourth Proportional to 57,212.32, 78,962.16 and 33,352.96

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Solution

The fourth proportional to 57,212.32, 78,962.16 and 33,352.96 is: 46,032.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,212.32 : 78,962.16 = 33,352.96 : x
  2. Step 2: Convert to fraction form
    57,212.32/78,962.16 = 33,352.96/x
  3. Step 3: Cross multiply
    57,212.32x = 78,962.16 × 33,352.96
  4. Step 4: Simplify right side
    57,212.32x = 2,633,621,763.99
  5. Step 5: Solve for x
    x = 2,633,621,763.99/57,212.32
  6. Step 6: Final answer
    x = 46,032.42

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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.