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Finding the Fourth Proportional to 7,866.62, 11,807.23 and 3,973.76

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Solution

The fourth proportional to 7,866.62, 11,807.23 and 3,973.76 is: 5,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.62 : 11,807.23 = 3,973.76 : x
  2. Step 2: Convert to fraction form
    7,866.62/11,807.23 = 3,973.76/x
  3. Step 3: Cross multiply
    7,866.62x = 11,807.23 × 3,973.76
  4. Step 4: Simplify right side
    7,866.62x = 46,919,098.28
  5. Step 5: Solve for x
    x = 46,919,098.28/7,866.62
  6. Step 6: Final answer
    x = 5,964.33

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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.