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Finding the Fourth Proportional to 18,707.51, 28,062.50 and 6,227.03

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Solution

The fourth proportional to 18,707.51, 28,062.50 and 6,227.03 is: 9,340.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.51 : 28,062.50 = 6,227.03 : x
  2. Step 2: Convert to fraction form
    18,707.51/28,062.50 = 6,227.03/x
  3. Step 3: Cross multiply
    18,707.51x = 28,062.50 × 6,227.03
  4. Step 4: Simplify right side
    18,707.51x = 174,745,857.93
  5. Step 5: Solve for x
    x = 174,745,857.93/18,707.51
  6. Step 6: Final answer
    x = 9,340.95

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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.