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Finding the Fourth Proportional to 1,584.66, 2,374.64 and 1,411.66

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Solution

The fourth proportional to 1,584.66, 2,374.64 and 1,411.66 is: 2,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.66 : 2,374.64 = 1,411.66 : x
  2. Step 2: Convert to fraction form
    1,584.66/2,374.64 = 1,411.66/x
  3. Step 3: Cross multiply
    1,584.66x = 2,374.64 × 1,411.66
  4. Step 4: Simplify right side
    1,584.66x = 3,352,184.30
  5. Step 5: Solve for x
    x = 3,352,184.30/1,584.66
  6. Step 6: Final answer
    x = 2,115.40

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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.