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Finding the Fourth Proportional to 63,906.74, 88,197.86 and 38,421.41

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Solution

The fourth proportional to 63,906.74, 88,197.86 and 38,421.41 is: 53,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,906.74 : 88,197.86 = 38,421.41 : x
  2. Step 2: Convert to fraction form
    63,906.74/88,197.86 = 38,421.41/x
  3. Step 3: Cross multiply
    63,906.74x = 88,197.86 × 38,421.41
  4. Step 4: Simplify right side
    63,906.74x = 3,388,686,140.18
  5. Step 5: Solve for x
    x = 3,388,686,140.18/63,906.74
  6. Step 6: Final answer
    x = 53,025.49

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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.