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Finding the Fourth Proportional to 4,662.40, 6,432.48 and 2,984.08

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Solution

The fourth proportional to 4,662.40, 6,432.48 and 2,984.08 is: 4,116.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,662.40 : 6,432.48 = 2,984.08 : x
  2. Step 2: Convert to fraction form
    4,662.40/6,432.48 = 2,984.08/x
  3. Step 3: Cross multiply
    4,662.40x = 6,432.48 × 2,984.08
  4. Step 4: Simplify right side
    4,662.40x = 19,195,034.92
  5. Step 5: Solve for x
    x = 19,195,034.92/4,662.40
  6. Step 6: Final answer
    x = 4,116.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.