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Finding the Fourth Proportional to 60,858.60, 83,980.86 and 33,999.78

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Solution

The fourth proportional to 60,858.60, 83,980.86 and 33,999.78 is: 46,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,858.60 : 83,980.86 = 33,999.78 : x
  2. Step 2: Convert to fraction form
    60,858.60/83,980.86 = 33,999.78/x
  3. Step 3: Cross multiply
    60,858.60x = 83,980.86 × 33,999.78
  4. Step 4: Simplify right side
    60,858.60x = 2,855,330,764.21
  5. Step 5: Solve for x
    x = 2,855,330,764.21/60,858.60
  6. Step 6: Final answer
    x = 46,917.46

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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.