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Finding the Fourth Proportional to 18,153.73, 27,212.23 and 7,053.49

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Solution

The fourth proportional to 18,153.73, 27,212.23 and 7,053.49 is: 10,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.73 : 27,212.23 = 7,053.49 : x
  2. Step 2: Convert to fraction form
    18,153.73/27,212.23 = 7,053.49/x
  3. Step 3: Cross multiply
    18,153.73x = 27,212.23 × 7,053.49
  4. Step 4: Simplify right side
    18,153.73x = 191,941,192.18
  5. Step 5: Solve for x
    x = 191,941,192.18/18,153.73
  6. Step 6: Final answer
    x = 10,573.10

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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.