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Finding the Fourth Proportional to 58,212.60, 87,318.90 and 54,324.60

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Solution

The fourth proportional to 58,212.60, 87,318.90 and 54,324.60 is: 81,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,212.60 : 87,318.90 = 54,324.60 : x
  2. Step 2: Convert to fraction form
    58,212.60/87,318.90 = 54,324.60/x
  3. Step 3: Cross multiply
    58,212.60x = 87,318.90 × 54,324.60
  4. Step 4: Simplify right side
    58,212.60x = 4,743,564,314.94
  5. Step 5: Solve for x
    x = 4,743,564,314.94/58,212.60
  6. Step 6: Final answer
    x = 81,486.90

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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.