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Finding the Fourth Proportional to 6,443.64, 9,666.02 and 1,826.64

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Solution

The fourth proportional to 6,443.64, 9,666.02 and 1,826.64 is: 2,740.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.64 : 9,666.02 = 1,826.64 : x
  2. Step 2: Convert to fraction form
    6,443.64/9,666.02 = 1,826.64/x
  3. Step 3: Cross multiply
    6,443.64x = 9,666.02 × 1,826.64
  4. Step 4: Simplify right side
    6,443.64x = 17,656,338.77
  5. Step 5: Solve for x
    x = 17,656,338.77/6,443.64
  6. Step 6: Final answer
    x = 2,740.12

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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.