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Finding the Fourth Proportional to 18,562.38, 25,615.02 and 11,009.46

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Solution

The fourth proportional to 18,562.38, 25,615.02 and 11,009.46 is: 15,192.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.38 : 25,615.02 = 11,009.46 : x
  2. Step 2: Convert to fraction form
    18,562.38/25,615.02 = 11,009.46/x
  3. Step 3: Cross multiply
    18,562.38x = 25,615.02 × 11,009.46
  4. Step 4: Simplify right side
    18,562.38x = 282,007,538.09
  5. Step 5: Solve for x
    x = 282,007,538.09/18,562.38
  6. Step 6: Final answer
    x = 15,192.42

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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.