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Finding the Fourth Proportional to 19,007.10, 28,510.65 and 18,241.65

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Solution

The fourth proportional to 19,007.10, 28,510.65 and 18,241.65 is: 27,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.10 : 28,510.65 = 18,241.65 : x
  2. Step 2: Convert to fraction form
    19,007.10/28,510.65 = 18,241.65/x
  3. Step 3: Cross multiply
    19,007.10x = 28,510.65 × 18,241.65
  4. Step 4: Simplify right side
    19,007.10x = 520,081,298.57
  5. Step 5: Solve for x
    x = 520,081,298.57/19,007.10
  6. Step 6: Final answer
    x = 27,362.48

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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.