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Finding the Fourth Proportional to 9,166.79, 13,745.52 and 4,479.77

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Solution

The fourth proportional to 9,166.79, 13,745.52 and 4,479.77 is: 6,717.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,166.79 : 13,745.52 = 4,479.77 : x
  2. Step 2: Convert to fraction form
    9,166.79/13,745.52 = 4,479.77/x
  3. Step 3: Cross multiply
    9,166.79x = 13,745.52 × 4,479.77
  4. Step 4: Simplify right side
    9,166.79x = 61,576,699.40
  5. Step 5: Solve for x
    x = 61,576,699.40/9,166.79
  6. Step 6: Final answer
    x = 6,717.37

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1.5x scale

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.