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Finding the Fourth Proportional to 12,521.52, 17,280.90 and 6,932.52

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Solution

The fourth proportional to 12,521.52, 17,280.90 and 6,932.52 is: 9,567.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.52 : 17,280.90 = 6,932.52 : x
  2. Step 2: Convert to fraction form
    12,521.52/17,280.90 = 6,932.52/x
  3. Step 3: Cross multiply
    12,521.52x = 17,280.90 × 6,932.52
  4. Step 4: Simplify right side
    12,521.52x = 119,800,184.87
  5. Step 5: Solve for x
    x = 119,800,184.87/12,521.52
  6. Step 6: Final answer
    x = 9,567.54

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1.5x scale

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.