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Finding the Fourth Proportional to 35,465.88, 48,945.42 and 20,361

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Solution

The fourth proportional to 35,465.88, 48,945.42 and 20,361 is: 28,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,465.88 : 48,945.42 = 20,361 : x
  2. Step 2: Convert to fraction form
    35,465.88/48,945.42 = 20,361/x
  3. Step 3: Cross multiply
    35,465.88x = 48,945.42 × 20,361
  4. Step 4: Simplify right side
    35,465.88x = 996,577,696.62
  5. Step 5: Solve for x
    x = 996,577,696.62/35,465.88
  6. Step 6: Final answer
    x = 28,099.62

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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.