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Finding the Fourth Proportional to 35,483.69, 48,965.26 and 20,365.71

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Solution

The fourth proportional to 35,483.69, 48,965.26 and 20,365.71 is: 28,103.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,483.69 : 48,965.26 = 20,365.71 : x
  2. Step 2: Convert to fraction form
    35,483.69/48,965.26 = 20,365.71/x
  3. Step 3: Cross multiply
    35,483.69x = 48,965.26 × 20,365.71
  4. Step 4: Simplify right side
    35,483.69x = 997,212,183.41
  5. Step 5: Solve for x
    x = 997,212,183.41/35,483.69
  6. Step 6: Final answer
    x = 28,103.40

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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.