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Finding the Fourth Proportional to 19,957.25, 27,541.19 and 11,005.07

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Solution

The fourth proportional to 19,957.25, 27,541.19 and 11,005.07 is: 15,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.25 : 27,541.19 = 11,005.07 : x
  2. Step 2: Convert to fraction form
    19,957.25/27,541.19 = 11,005.07/x
  3. Step 3: Cross multiply
    19,957.25x = 27,541.19 × 11,005.07
  4. Step 4: Simplify right side
    19,957.25x = 303,092,744.50
  5. Step 5: Solve for x
    x = 303,092,744.50/19,957.25
  6. Step 6: Final answer
    x = 15,187.10

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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.