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Finding the Fourth Proportional to 19,292.65, 28,944.74 and 8,053.36

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Solution

The fourth proportional to 19,292.65, 28,944.74 and 8,053.36 is: 12,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.65 : 28,944.74 = 8,053.36 : x
  2. Step 2: Convert to fraction form
    19,292.65/28,944.74 = 8,053.36/x
  3. Step 3: Cross multiply
    19,292.65x = 28,944.74 × 8,053.36
  4. Step 4: Simplify right side
    19,292.65x = 233,102,359.10
  5. Step 5: Solve for x
    x = 233,102,359.10/19,292.65
  6. Step 6: Final answer
    x = 12,082.45

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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.