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Finding the Fourth Proportional to 7,292.64, 10,938.54 and 4,368.96

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Solution

The fourth proportional to 7,292.64, 10,938.54 and 4,368.96 is: 6,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,292.64 : 10,938.54 = 4,368.96 : x
  2. Step 2: Convert to fraction form
    7,292.64/10,938.54 = 4,368.96/x
  3. Step 3: Cross multiply
    7,292.64x = 10,938.54 × 4,368.96
  4. Step 4: Simplify right side
    7,292.64x = 47,790,043.72
  5. Step 5: Solve for x
    x = 47,790,043.72/7,292.64
  6. Step 6: Final answer
    x = 6,553.19

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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.