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Finding the Fourth Proportional to 17,574.60, 26,348.40 and 8,815.80

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Solution

The fourth proportional to 17,574.60, 26,348.40 and 8,815.80 is: 13,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,574.60 : 26,348.40 = 8,815.80 : x
  2. Step 2: Convert to fraction form
    17,574.60/26,348.40 = 8,815.80/x
  3. Step 3: Cross multiply
    17,574.60x = 26,348.40 × 8,815.80
  4. Step 4: Simplify right side
    17,574.60x = 232,282,224.72
  5. Step 5: Solve for x
    x = 232,282,224.72/17,574.60
  6. Step 6: Final answer
    x = 13,216.93

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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.