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Finding the Fourth Proportional to 63,456.99, 87,559.54 and 36,220.64

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Solution

The fourth proportional to 63,456.99, 87,559.54 and 36,220.64 is: 49,978.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,456.99 : 87,559.54 = 36,220.64 : x
  2. Step 2: Convert to fraction form
    63,456.99/87,559.54 = 36,220.64/x
  3. Step 3: Cross multiply
    63,456.99x = 87,559.54 × 36,220.64
  4. Step 4: Simplify right side
    63,456.99x = 3,171,462,576.91
  5. Step 5: Solve for x
    x = 3,171,462,576.91/63,456.99
  6. Step 6: Final answer
    x = 49,978.14

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1.5x scale

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.