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Finding the Fourth Proportional to 2,184.86, 3,275.66 and 703.22

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Solution

The fourth proportional to 2,184.86, 3,275.66 and 703.22 is: 1,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.86 : 3,275.66 = 703.22 : x
  2. Step 2: Convert to fraction form
    2,184.86/3,275.66 = 703.22/x
  3. Step 3: Cross multiply
    2,184.86x = 3,275.66 × 703.22
  4. Step 4: Simplify right side
    2,184.86x = 2,303,509.63
  5. Step 5: Solve for x
    x = 2,303,509.63/2,184.86
  6. Step 6: Final answer
    x = 1,054.31

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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.