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Finding the Fourth Proportional to 57,782.70, 86,674.05 and 43,094.70

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Solution

The fourth proportional to 57,782.70, 86,674.05 and 43,094.70 is: 64,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,782.70 : 86,674.05 = 43,094.70 : x
  2. Step 2: Convert to fraction form
    57,782.70/86,674.05 = 43,094.70/x
  3. Step 3: Cross multiply
    57,782.70x = 86,674.05 × 43,094.70
  4. Step 4: Simplify right side
    57,782.70x = 3,735,192,182.54
  5. Step 5: Solve for x
    x = 3,735,192,182.54/57,782.70
  6. Step 6: Final answer
    x = 64,642.05

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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.