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Finding the Fourth Proportional to 19,348.77, 28,995.77 and 8,244.27

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Solution

The fourth proportional to 19,348.77, 28,995.77 and 8,244.27 is: 12,354.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,348.77 : 28,995.77 = 8,244.27 : x
  2. Step 2: Convert to fraction form
    19,348.77/28,995.77 = 8,244.27/x
  3. Step 3: Cross multiply
    19,348.77x = 28,995.77 × 8,244.27
  4. Step 4: Simplify right side
    19,348.77x = 239,048,956.74
  5. Step 5: Solve for x
    x = 239,048,956.74/19,348.77
  6. Step 6: Final answer
    x = 12,354.74

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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.