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Finding the Fourth Proportional to 18,851.84, 28,305.36 and 10,548.08

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Solution

The fourth proportional to 18,851.84, 28,305.36 and 10,548.08 is: 15,837.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.84 : 28,305.36 = 10,548.08 : x
  2. Step 2: Convert to fraction form
    18,851.84/28,305.36 = 10,548.08/x
  3. Step 3: Cross multiply
    18,851.84x = 28,305.36 × 10,548.08
  4. Step 4: Simplify right side
    18,851.84x = 298,567,201.71
  5. Step 5: Solve for x
    x = 298,567,201.71/18,851.84
  6. Step 6: Final answer
    x = 15,837.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.