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Finding the Fourth Proportional to 35,651.80, 49,204.64 and 20,541.57

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Solution

The fourth proportional to 35,651.80, 49,204.64 and 20,541.57 is: 28,350.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,651.80 : 49,204.64 = 20,541.57 : x
  2. Step 2: Convert to fraction form
    35,651.80/49,204.64 = 20,541.57/x
  3. Step 3: Cross multiply
    35,651.80x = 49,204.64 × 20,541.57
  4. Step 4: Simplify right side
    35,651.80x = 1,010,740,331.17
  5. Step 5: Solve for x
    x = 1,010,740,331.17/35,651.80
  6. Step 6: Final answer
    x = 28,350.33

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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.