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Finding the Fourth Proportional to 60,878.81, 84,012.87 and 34,021.32

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Solution

The fourth proportional to 60,878.81, 84,012.87 and 34,021.32 is: 46,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,878.81 : 84,012.87 = 34,021.32 : x
  2. Step 2: Convert to fraction form
    60,878.81/84,012.87 = 34,021.32/x
  3. Step 3: Cross multiply
    60,878.81x = 84,012.87 × 34,021.32
  4. Step 4: Simplify right side
    60,878.81x = 2,858,228,734.39
  5. Step 5: Solve for x
    x = 2,858,228,734.39/60,878.81
  6. Step 6: Final answer
    x = 46,949.48

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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.