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Finding the Fourth Proportional to 7,008.54, 9,671.72 and 4,025.31

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Solution

The fourth proportional to 7,008.54, 9,671.72 and 4,025.31 is: 5,554.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.54 : 9,671.72 = 4,025.31 : x
  2. Step 2: Convert to fraction form
    7,008.54/9,671.72 = 4,025.31/x
  3. Step 3: Cross multiply
    7,008.54x = 9,671.72 × 4,025.31
  4. Step 4: Simplify right side
    7,008.54x = 38,931,651.11
  5. Step 5: Solve for x
    x = 38,931,651.11/7,008.54
  6. Step 6: Final answer
    x = 5,554.89

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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.