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Finding the Fourth Proportional to 58,662.70, 87,998.88 and 19,218.94

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Solution

The fourth proportional to 58,662.70, 87,998.88 and 19,218.94 is: 28,829.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,662.70 : 87,998.88 = 19,218.94 : x
  2. Step 2: Convert to fraction form
    58,662.70/87,998.88 = 19,218.94/x
  3. Step 3: Cross multiply
    58,662.70x = 87,998.88 × 19,218.94
  4. Step 4: Simplify right side
    58,662.70x = 1,691,245,194.79
  5. Step 5: Solve for x
    x = 1,691,245,194.79/58,662.70
  6. Step 6: Final answer
    x = 28,829.99

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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.