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Finding the Fourth Proportional to 3,783.86, 5,675.80 and 1,703.48

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Solution

The fourth proportional to 3,783.86, 5,675.80 and 1,703.48 is: 2,555.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,783.86 : 5,675.80 = 1,703.48 : x
  2. Step 2: Convert to fraction form
    3,783.86/5,675.80 = 1,703.48/x
  3. Step 3: Cross multiply
    3,783.86x = 5,675.80 × 1,703.48
  4. Step 4: Simplify right side
    3,783.86x = 9,668,593.51
  5. Step 5: Solve for x
    x = 9,668,593.51/3,783.86
  6. Step 6: Final answer
    x = 2,555.22

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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.