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Finding the Fourth Proportional to 7,060.52, 9,743.24 and 3,916.64

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Solution

The fourth proportional to 7,060.52, 9,743.24 and 3,916.64 is: 5,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,060.52 : 9,743.24 = 3,916.64 : x
  2. Step 2: Convert to fraction form
    7,060.52/9,743.24 = 3,916.64/x
  3. Step 3: Cross multiply
    7,060.52x = 9,743.24 × 3,916.64
  4. Step 4: Simplify right side
    7,060.52x = 38,160,763.51
  5. Step 5: Solve for x
    x = 38,160,763.51/7,060.52
  6. Step 6: Final answer
    x = 5,404.81

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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.