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Finding the Fourth Proportional to 58,245.40, 87,236.80 and 40,793.12

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Solution

The fourth proportional to 58,245.40, 87,236.80 and 40,793.12 is: 61,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,245.40 : 87,236.80 = 40,793.12 : x
  2. Step 2: Convert to fraction form
    58,245.40/87,236.80 = 40,793.12/x
  3. Step 3: Cross multiply
    58,245.40x = 87,236.80 × 40,793.12
  4. Step 4: Simplify right side
    58,245.40x = 3,558,661,250.82
  5. Step 5: Solve for x
    x = 3,558,661,250.82/58,245.40
  6. Step 6: Final answer
    x = 61,097.72

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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.