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Finding the Fourth Proportional to 6,322.51, 9,482.55 and 1,938.79

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Solution

The fourth proportional to 6,322.51, 9,482.55 and 1,938.79 is: 2,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,322.51 : 9,482.55 = 1,938.79 : x
  2. Step 2: Convert to fraction form
    6,322.51/9,482.55 = 1,938.79/x
  3. Step 3: Cross multiply
    6,322.51x = 9,482.55 × 1,938.79
  4. Step 4: Simplify right side
    6,322.51x = 18,384,673.11
  5. Step 5: Solve for x
    x = 18,384,673.11/6,322.51
  6. Step 6: Final answer
    x = 2,907.81

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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.