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Finding the Fourth Proportional to 7,726.79, 10,662.82 and 4,369.51

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Solution

The fourth proportional to 7,726.79, 10,662.82 and 4,369.51 is: 6,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.79 : 10,662.82 = 4,369.51 : x
  2. Step 2: Convert to fraction form
    7,726.79/10,662.82 = 4,369.51/x
  3. Step 3: Cross multiply
    7,726.79x = 10,662.82 × 4,369.51
  4. Step 4: Simplify right side
    7,726.79x = 46,591,298.62
  5. Step 5: Solve for x
    x = 46,591,298.62/7,726.79
  6. Step 6: Final answer
    x = 6,029.84

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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.