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Finding the Fourth Proportional to 58,077.60, 80,171.60 and 39,240.24

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Solution

The fourth proportional to 58,077.60, 80,171.60 and 39,240.24 is: 54,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,077.60 : 80,171.60 = 39,240.24 : x
  2. Step 2: Convert to fraction form
    58,077.60/80,171.60 = 39,240.24/x
  3. Step 3: Cross multiply
    58,077.60x = 80,171.60 × 39,240.24
  4. Step 4: Simplify right side
    58,077.60x = 3,145,952,825.18
  5. Step 5: Solve for x
    x = 3,145,952,825.18/58,077.60
  6. Step 6: Final answer
    x = 54,168.09

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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.