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Finding the Fourth Proportional to 7,866.44, 10,855.28 and 4,328.97

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Solution

The fourth proportional to 7,866.44, 10,855.28 and 4,328.97 is: 5,973.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.44 : 10,855.28 = 4,328.97 : x
  2. Step 2: Convert to fraction form
    7,866.44/10,855.28 = 4,328.97/x
  3. Step 3: Cross multiply
    7,866.44x = 10,855.28 × 4,328.97
  4. Step 4: Simplify right side
    7,866.44x = 46,992,159.82
  5. Step 5: Solve for x
    x = 46,992,159.82/7,866.44
  6. Step 6: Final answer
    x = 5,973.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.