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Finding the Fourth Proportional to 58,245.60, 87,218.64 and 39,496.80

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Solution

The fourth proportional to 58,245.60, 87,218.64 and 39,496.80 is: 59,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.60 : 87,218.64 = 39,496.80 : x
  2. Step 2: Convert to fraction form
    58,245.60/87,218.64 = 39,496.80/x
  3. Step 3: Cross multiply
    58,245.60x = 87,218.64 × 39,496.80
  4. Step 4: Simplify right side
    58,245.60x = 3,444,857,180.35
  5. Step 5: Solve for x
    x = 3,444,857,180.35/58,245.60
  6. Step 6: Final answer
    x = 59,143.65

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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.