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Finding the Fourth Proportional to 17,806.60, 26,712.30 and 6,123.40

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Solution

The fourth proportional to 17,806.60, 26,712.30 and 6,123.40 is: 9,185.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,806.60 : 26,712.30 = 6,123.40 : x
  2. Step 2: Convert to fraction form
    17,806.60/26,712.30 = 6,123.40/x
  3. Step 3: Cross multiply
    17,806.60x = 26,712.30 × 6,123.40
  4. Step 4: Simplify right side
    17,806.60x = 163,570,097.82
  5. Step 5: Solve for x
    x = 163,570,097.82/17,806.60
  6. Step 6: Final answer
    x = 9,185.93

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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.