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Finding the Fourth Proportional to 14,525.72, 20,048.91 and 8,865.15

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Solution

The fourth proportional to 14,525.72, 20,048.91 and 8,865.15 is: 12,235.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,525.72 : 20,048.91 = 8,865.15 : x
  2. Step 2: Convert to fraction form
    14,525.72/20,048.91 = 8,865.15/x
  3. Step 3: Cross multiply
    14,525.72x = 20,048.91 × 8,865.15
  4. Step 4: Simplify right side
    14,525.72x = 177,736,567.38
  5. Step 5: Solve for x
    x = 177,736,567.38/14,525.72
  6. Step 6: Final answer
    x = 12,235.99

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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.