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Finding the Fourth Proportional to 15,977.92, 22,048.64 and 8,806.43

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Solution

The fourth proportional to 15,977.92, 22,048.64 and 8,806.43 is: 12,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,977.92 : 22,048.64 = 8,806.43 : x
  2. Step 2: Convert to fraction form
    15,977.92/22,048.64 = 8,806.43/x
  3. Step 3: Cross multiply
    15,977.92x = 22,048.64 × 8,806.43
  4. Step 4: Simplify right side
    15,977.92x = 194,169,760.72
  5. Step 5: Solve for x
    x = 194,169,760.72/15,977.92
  6. Step 6: Final answer
    x = 12,152.38

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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.