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Finding the Fourth Proportional to 23,199.76, 34,760.76 and 12,779.92

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Solution

The fourth proportional to 23,199.76, 34,760.76 and 12,779.92 is: 19,148.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,199.76 : 34,760.76 = 12,779.92 : x
  2. Step 2: Convert to fraction form
    23,199.76/34,760.76 = 12,779.92/x
  3. Step 3: Cross multiply
    23,199.76x = 34,760.76 × 12,779.92
  4. Step 4: Simplify right side
    23,199.76x = 444,239,731.94
  5. Step 5: Solve for x
    x = 444,239,731.94/23,199.76
  6. Step 6: Final answer
    x = 19,148.46

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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.