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Finding the Fourth Proportional to 4,698.11, 7,046.61 and 1,411.20

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Solution

The fourth proportional to 4,698.11, 7,046.61 and 1,411.20 is: 2,116.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.11 : 7,046.61 = 1,411.20 : x
  2. Step 2: Convert to fraction form
    4,698.11/7,046.61 = 1,411.20/x
  3. Step 3: Cross multiply
    4,698.11x = 7,046.61 × 1,411.20
  4. Step 4: Simplify right side
    4,698.11x = 9,944,176.03
  5. Step 5: Solve for x
    x = 9,944,176.03/4,698.11
  6. Step 6: Final answer
    x = 2,116.64

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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.