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Finding the Fourth Proportional to 57,245.26, 79,009.80 and 33,375.76

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Solution

The fourth proportional to 57,245.26, 79,009.80 and 33,375.76 is: 46,065.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,245.26 : 79,009.80 = 33,375.76 : x
  2. Step 2: Convert to fraction form
    57,245.26/79,009.80 = 33,375.76/x
  3. Step 3: Cross multiply
    57,245.26x = 79,009.80 × 33,375.76
  4. Step 4: Simplify right side
    57,245.26x = 2,637,012,122.45
  5. Step 5: Solve for x
    x = 2,637,012,122.45/57,245.26
  6. Step 6: Final answer
    x = 46,065.16

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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.