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Finding the Fourth Proportional to 57,199, 85,804.44 and 15,646

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Solution

The fourth proportional to 57,199, 85,804.44 and 15,646 is: 23,470.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,199 : 85,804.44 = 15,646 : x
  2. Step 2: Convert to fraction form
    57,199/85,804.44 = 15,646/x
  3. Step 3: Cross multiply
    57,199x = 85,804.44 × 15,646
  4. Step 4: Simplify right side
    57,199x = 1,342,496,268.24
  5. Step 5: Solve for x
    x = 1,342,496,268.24/57,199
  6. Step 6: Final answer
    x = 23,470.62

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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.