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Finding the Fourth Proportional to 12,053.57, 18,187.31 and 12,053.57

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Solution

The fourth proportional to 12,053.57, 18,187.31 and 12,053.57 is: 18,187.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,053.57 : 18,187.31 = 12,053.57 : x
  2. Step 2: Convert to fraction form
    12,053.57/18,187.31 = 12,053.57/x
  3. Step 3: Cross multiply
    12,053.57x = 18,187.31 × 12,053.57
  4. Step 4: Simplify right side
    12,053.57x = 219,221,953.39
  5. Step 5: Solve for x
    x = 219,221,953.39/12,053.57
  6. Step 6: Final answer
    x = 18,187.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.