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Finding the Fourth Proportional to 11,568.60, 17,352.90 and 5,655.50

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Solution

The fourth proportional to 11,568.60, 17,352.90 and 5,655.50 is: 8,483.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,568.60 : 17,352.90 = 5,655.50 : x
  2. Step 2: Convert to fraction form
    11,568.60/17,352.90 = 5,655.50/x
  3. Step 3: Cross multiply
    11,568.60x = 17,352.90 × 5,655.50
  4. Step 4: Simplify right side
    11,568.60x = 98,139,325.95
  5. Step 5: Solve for x
    x = 98,139,325.95/11,568.60
  6. Step 6: Final answer
    x = 8,483.25

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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.