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Finding the Fourth Proportional to 2,009.64, 3,013.02 and 776.01

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Solution

The fourth proportional to 2,009.64, 3,013.02 and 776.01 is: 1,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.64 : 3,013.02 = 776.01 : x
  2. Step 2: Convert to fraction form
    2,009.64/3,013.02 = 776.01/x
  3. Step 3: Cross multiply
    2,009.64x = 3,013.02 × 776.01
  4. Step 4: Simplify right side
    2,009.64x = 2,338,133.65
  5. Step 5: Solve for x
    x = 2,338,133.65/2,009.64
  6. Step 6: Final answer
    x = 1,163.46

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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.