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Finding the Fourth Proportional to 18,663.88, 25,804.95 and 17,837.68

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Solution

The fourth proportional to 18,663.88, 25,804.95 and 17,837.68 is: 24,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.88 : 25,804.95 = 17,837.68 : x
  2. Step 2: Convert to fraction form
    18,663.88/25,804.95 = 17,837.68/x
  3. Step 3: Cross multiply
    18,663.88x = 25,804.95 × 17,837.68
  4. Step 4: Simplify right side
    18,663.88x = 460,300,440.52
  5. Step 5: Solve for x
    x = 460,300,440.52/18,663.88
  6. Step 6: Final answer
    x = 24,662.63

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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.