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Finding the Fourth Proportional to 2,488.76, 3,730.62 and 1,102.84

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Solution

The fourth proportional to 2,488.76, 3,730.62 and 1,102.84 is: 1,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.76 : 3,730.62 = 1,102.84 : x
  2. Step 2: Convert to fraction form
    2,488.76/3,730.62 = 1,102.84/x
  3. Step 3: Cross multiply
    2,488.76x = 3,730.62 × 1,102.84
  4. Step 4: Simplify right side
    2,488.76x = 4,114,276.96
  5. Step 5: Solve for x
    x = 4,114,276.96/2,488.76
  6. Step 6: Final answer
    x = 1,653.14

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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.