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Finding the Fourth Proportional to 12,850.86, 17,726.79 and 7,544.65

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Solution

The fourth proportional to 12,850.86, 17,726.79 and 7,544.65 is: 10,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,850.86 : 17,726.79 = 7,544.65 : x
  2. Step 2: Convert to fraction form
    12,850.86/17,726.79 = 7,544.65/x
  3. Step 3: Cross multiply
    12,850.86x = 17,726.79 × 7,544.65
  4. Step 4: Simplify right side
    12,850.86x = 133,742,400.95
  5. Step 5: Solve for x
    x = 133,742,400.95/12,850.86
  6. Step 6: Final answer
    x = 10,407.27

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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.