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Finding the Fourth Proportional to 63,486.42, 87,605.37 and 35,189.70

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Solution

The fourth proportional to 63,486.42, 87,605.37 and 35,189.70 is: 48,558.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,486.42 : 87,605.37 = 35,189.70 : x
  2. Step 2: Convert to fraction form
    63,486.42/87,605.37 = 35,189.70/x
  3. Step 3: Cross multiply
    63,486.42x = 87,605.37 × 35,189.70
  4. Step 4: Simplify right side
    63,486.42x = 3,082,806,688.69
  5. Step 5: Solve for x
    x = 3,082,806,688.69/63,486.42
  6. Step 6: Final answer
    x = 48,558.52

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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.