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Finding the Fourth Proportional to 58,181.90, 80,290.85 and 33,987.60

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Solution

The fourth proportional to 58,181.90, 80,290.85 and 33,987.60 is: 46,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,181.90 : 80,290.85 = 33,987.60 : x
  2. Step 2: Convert to fraction form
    58,181.90/80,290.85 = 33,987.60/x
  3. Step 3: Cross multiply
    58,181.90x = 80,290.85 × 33,987.60
  4. Step 4: Simplify right side
    58,181.90x = 2,728,893,123.52
  5. Step 5: Solve for x
    x = 2,728,893,123.52/58,181.90
  6. Step 6: Final answer
    x = 46,902.79

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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.