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Finding the Fourth Proportional to 63,453.69, 87,606.45 and 39,615.39

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Solution

The fourth proportional to 63,453.69, 87,606.45 and 39,615.39 is: 54,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,453.69 : 87,606.45 = 39,615.39 : x
  2. Step 2: Convert to fraction form
    63,453.69/87,606.45 = 39,615.39/x
  3. Step 3: Cross multiply
    63,453.69x = 87,606.45 × 39,615.39
  4. Step 4: Simplify right side
    63,453.69x = 3,470,563,683.27
  5. Step 5: Solve for x
    x = 3,470,563,683.27/63,453.69
  6. Step 6: Final answer
    x = 54,694.43

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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.