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Finding the Fourth Proportional to 19,033.92, 28,554.36 and 7,935.12

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Solution

The fourth proportional to 19,033.92, 28,554.36 and 7,935.12 is: 11,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,033.92 : 28,554.36 = 7,935.12 : x
  2. Step 2: Convert to fraction form
    19,033.92/28,554.36 = 7,935.12/x
  3. Step 3: Cross multiply
    19,033.92x = 28,554.36 × 7,935.12
  4. Step 4: Simplify right side
    19,033.92x = 226,582,273.12
  5. Step 5: Solve for x
    x = 226,582,273.12/19,033.92
  6. Step 6: Final answer
    x = 11,904.13

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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.