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Finding the Fourth Proportional to 55,379.64, 83,093.82 and 29,078.28

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Solution

The fourth proportional to 55,379.64, 83,093.82 and 29,078.28 is: 43,630.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,379.64 : 83,093.82 = 29,078.28 : x
  2. Step 2: Convert to fraction form
    55,379.64/83,093.82 = 29,078.28/x
  3. Step 3: Cross multiply
    55,379.64x = 83,093.82 × 29,078.28
  4. Step 4: Simplify right side
    55,379.64x = 2,416,225,364.23
  5. Step 5: Solve for x
    x = 2,416,225,364.23/55,379.64
  6. Step 6: Final answer
    x = 43,630.21

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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.