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Finding the Fourth Proportional to 4,718.39, 7,078.50 and 1,796.47

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Solution

The fourth proportional to 4,718.39, 7,078.50 and 1,796.47 is: 2,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,718.39 : 7,078.50 = 1,796.47 : x
  2. Step 2: Convert to fraction form
    4,718.39/7,078.50 = 1,796.47/x
  3. Step 3: Cross multiply
    4,718.39x = 7,078.50 × 1,796.47
  4. Step 4: Simplify right side
    4,718.39x = 12,716,312.90
  5. Step 5: Solve for x
    x = 12,716,312.90/4,718.39
  6. Step 6: Final answer
    x = 2,695.05

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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.