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Finding the Fourth Proportional to 14,818.80, 22,231.80 and 4,430.52

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Solution

The fourth proportional to 14,818.80, 22,231.80 and 4,430.52 is: 6,646.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,818.80 : 22,231.80 = 4,430.52 : x
  2. Step 2: Convert to fraction form
    14,818.80/22,231.80 = 4,430.52/x
  3. Step 3: Cross multiply
    14,818.80x = 22,231.80 × 4,430.52
  4. Step 4: Simplify right side
    14,818.80x = 98,498,434.54
  5. Step 5: Solve for x
    x = 98,498,434.54/14,818.80
  6. Step 6: Final answer
    x = 6,646.86

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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.