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Finding the Fourth Proportional to 63,403.90, 87,477.48 and 36,542.68

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Solution

The fourth proportional to 63,403.90, 87,477.48 and 36,542.68 is: 50,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,403.90 : 87,477.48 = 36,542.68 : x
  2. Step 2: Convert to fraction form
    63,403.90/87,477.48 = 36,542.68/x
  3. Step 3: Cross multiply
    63,403.90x = 87,477.48 × 36,542.68
  4. Step 4: Simplify right side
    63,403.90x = 3,196,661,558.85
  5. Step 5: Solve for x
    x = 3,196,661,558.85/63,403.90
  6. Step 6: Final answer
    x = 50,417.43

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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.