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Finding the Fourth Proportional to 19,598.78, 27,048.51 and 11,101.47

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Solution

The fourth proportional to 19,598.78, 27,048.51 and 11,101.47 is: 15,321.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,598.78 : 27,048.51 = 11,101.47 : x
  2. Step 2: Convert to fraction form
    19,598.78/27,048.51 = 11,101.47/x
  3. Step 3: Cross multiply
    19,598.78x = 27,048.51 × 11,101.47
  4. Step 4: Simplify right side
    19,598.78x = 300,278,222.31
  5. Step 5: Solve for x
    x = 300,278,222.31/19,598.78
  6. Step 6: Final answer
    x = 15,321.28

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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.