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Finding the Fourth Proportional to 7,060.50, 9,743.49 and 3,916.89

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Solution

The fourth proportional to 7,060.50, 9,743.49 and 3,916.89 is: 5,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.50 : 9,743.49 = 3,916.89 : x
  2. Step 2: Convert to fraction form
    7,060.50/9,743.49 = 3,916.89/x
  3. Step 3: Cross multiply
    7,060.50x = 9,743.49 × 3,916.89
  4. Step 4: Simplify right side
    7,060.50x = 38,164,178.55
  5. Step 5: Solve for x
    x = 38,164,178.55/7,060.50
  6. Step 6: Final answer
    x = 5,405.31

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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.