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Finding the Fourth Proportional to 17,708.40, 26,564.52 and 6,620.40

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Solution

The fourth proportional to 17,708.40, 26,564.52 and 6,620.40 is: 9,931.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,708.40 : 26,564.52 = 6,620.40 : x
  2. Step 2: Convert to fraction form
    17,708.40/26,564.52 = 6,620.40/x
  3. Step 3: Cross multiply
    17,708.40x = 26,564.52 × 6,620.40
  4. Step 4: Simplify right side
    17,708.40x = 175,867,748.21
  5. Step 5: Solve for x
    x = 175,867,748.21/17,708.40
  6. Step 6: Final answer
    x = 9,931.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.