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Finding the Fourth Proportional to 9,442.64, 14,164.42 and 2,868.90

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Solution

The fourth proportional to 9,442.64, 14,164.42 and 2,868.90 is: 4,303.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,442.64 : 14,164.42 = 2,868.90 : x
  2. Step 2: Convert to fraction form
    9,442.64/14,164.42 = 2,868.90/x
  3. Step 3: Cross multiply
    9,442.64x = 14,164.42 × 2,868.90
  4. Step 4: Simplify right side
    9,442.64x = 40,636,304.54
  5. Step 5: Solve for x
    x = 40,636,304.54/9,442.64
  6. Step 6: Final answer
    x = 4,303.49

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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.