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Finding the Fourth Proportional to 4,920.12, 7,368.84 and 2,968.02

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Solution

The fourth proportional to 4,920.12, 7,368.84 and 2,968.02 is: 4,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.12 : 7,368.84 = 2,968.02 : x
  2. Step 2: Convert to fraction form
    4,920.12/7,368.84 = 2,968.02/x
  3. Step 3: Cross multiply
    4,920.12x = 7,368.84 × 2,968.02
  4. Step 4: Simplify right side
    4,920.12x = 21,870,864.50
  5. Step 5: Solve for x
    x = 21,870,864.50/4,920.12
  6. Step 6: Final answer
    x = 4,445.19

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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.