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Finding the Fourth Proportional to 56,809.60, 85,214.39 and 15,256.60

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Solution

The fourth proportional to 56,809.60, 85,214.39 and 15,256.60 is: 22,884.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,809.60 : 85,214.39 = 15,256.60 : x
  2. Step 2: Convert to fraction form
    56,809.60/85,214.39 = 15,256.60/x
  3. Step 3: Cross multiply
    56,809.60x = 85,214.39 × 15,256.60
  4. Step 4: Simplify right side
    56,809.60x = 1,300,081,687.58
  5. Step 5: Solve for x
    x = 1,300,081,687.58/56,809.60
  6. Step 6: Final answer
    x = 22,884.90

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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.