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Finding the Fourth Proportional to 56,640.24, 78,134.08 and 33,968.34

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Solution

The fourth proportional to 56,640.24, 78,134.08 and 33,968.34 is: 46,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,640.24 : 78,134.08 = 33,968.34 : x
  2. Step 2: Convert to fraction form
    56,640.24/78,134.08 = 33,968.34/x
  3. Step 3: Cross multiply
    56,640.24x = 78,134.08 × 33,968.34
  4. Step 4: Simplify right side
    56,640.24x = 2,654,084,995.03
  5. Step 5: Solve for x
    x = 2,654,084,995.03/56,640.24
  6. Step 6: Final answer
    x = 46,858.65

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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.