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Finding the Fourth Proportional to 19,062.56, 28,605.06 and 7,968.38

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Solution

The fourth proportional to 19,062.56, 28,605.06 and 7,968.38 is: 11,957.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,062.56 : 28,605.06 = 7,968.38 : x
  2. Step 2: Convert to fraction form
    19,062.56/28,605.06 = 7,968.38/x
  3. Step 3: Cross multiply
    19,062.56x = 28,605.06 × 7,968.38
  4. Step 4: Simplify right side
    19,062.56x = 227,935,988.00
  5. Step 5: Solve for x
    x = 227,935,988.00/19,062.56
  6. Step 6: Final answer
    x = 11,957.26

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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.