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Finding the Fourth Proportional to 7,235.52, 9,979.20 and 4,717.44

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Solution

The fourth proportional to 7,235.52, 9,979.20 and 4,717.44 is: 6,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,235.52 : 9,979.20 = 4,717.44 : x
  2. Step 2: Convert to fraction form
    7,235.52/9,979.20 = 4,717.44/x
  3. Step 3: Cross multiply
    7,235.52x = 9,979.20 × 4,717.44
  4. Step 4: Simplify right side
    7,235.52x = 47,076,277.25
  5. Step 5: Solve for x
    x = 47,076,277.25/7,235.52
  6. Step 6: Final answer
    x = 6,506.27

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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.