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Finding the Fourth Proportional to 7,316.92, 10,979.70 and 2,703.16

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Solution

The fourth proportional to 7,316.92, 10,979.70 and 2,703.16 is: 4,056.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.92 : 10,979.70 = 2,703.16 : x
  2. Step 2: Convert to fraction form
    7,316.92/10,979.70 = 2,703.16/x
  3. Step 3: Cross multiply
    7,316.92x = 10,979.70 × 2,703.16
  4. Step 4: Simplify right side
    7,316.92x = 29,679,885.85
  5. Step 5: Solve for x
    x = 29,679,885.85/7,316.92
  6. Step 6: Final answer
    x = 4,056.34

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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.