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Finding the Fourth Proportional to 14,844.27, 20,484.90 and 8,470.71

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Solution

The fourth proportional to 14,844.27, 20,484.90 and 8,470.71 is: 11,689.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.27 : 20,484.90 = 8,470.71 : x
  2. Step 2: Convert to fraction form
    14,844.27/20,484.90 = 8,470.71/x
  3. Step 3: Cross multiply
    14,844.27x = 20,484.90 × 8,470.71
  4. Step 4: Simplify right side
    14,844.27x = 173,521,647.28
  5. Step 5: Solve for x
    x = 173,521,647.28/14,844.27
  6. Step 6: Final answer
    x = 11,689.47

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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.