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Finding the Fourth Proportional to 35,957.40, 53,927.46 and 18,418.20

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Solution

The fourth proportional to 35,957.40, 53,927.46 and 18,418.20 is: 27,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,957.40 : 53,927.46 = 18,418.20 : x
  2. Step 2: Convert to fraction form
    35,957.40/53,927.46 = 18,418.20/x
  3. Step 3: Cross multiply
    35,957.40x = 53,927.46 × 18,418.20
  4. Step 4: Simplify right side
    35,957.40x = 993,246,743.77
  5. Step 5: Solve for x
    x = 993,246,743.77/35,957.40
  6. Step 6: Final answer
    x = 27,622.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.