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Finding the Fourth Proportional to 15,230.88, 22,790.92 and 12,573.67

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Solution

The fourth proportional to 15,230.88, 22,790.92 and 12,573.67 is: 18,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,230.88 : 22,790.92 = 12,573.67 : x
  2. Step 2: Convert to fraction form
    15,230.88/22,790.92 = 12,573.67/x
  3. Step 3: Cross multiply
    15,230.88x = 22,790.92 × 12,573.67
  4. Step 4: Simplify right side
    15,230.88x = 286,565,507.08
  5. Step 5: Solve for x
    x = 286,565,507.08/15,230.88
  6. Step 6: Final answer
    x = 18,814.77

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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.