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Finding the Fourth Proportional to 7,160, 9,880.96 and 4,367.04

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Solution

The fourth proportional to 7,160, 9,880.96 and 4,367.04 is: 6,026.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160 : 9,880.96 = 4,367.04 : x
  2. Step 2: Convert to fraction form
    7,160/9,880.96 = 4,367.04/x
  3. Step 3: Cross multiply
    7,160x = 9,880.96 × 4,367.04
  4. Step 4: Simplify right side
    7,160x = 43,150,547.56
  5. Step 5: Solve for x
    x = 43,150,547.56/7,160
  6. Step 6: Final answer
    x = 6,026.61

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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.