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Finding the Fourth Proportional to 56,825.74, 85,238.58 and 15,272.74

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Solution

The fourth proportional to 56,825.74, 85,238.58 and 15,272.74 is: 22,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,825.74 : 85,238.58 = 15,272.74 : x
  2. Step 2: Convert to fraction form
    56,825.74/85,238.58 = 15,272.74/x
  3. Step 3: Cross multiply
    56,825.74x = 85,238.58 × 15,272.74
  4. Step 4: Simplify right side
    56,825.74x = 1,301,826,670.31
  5. Step 5: Solve for x
    x = 1,301,826,670.31/56,825.74
  6. Step 6: Final answer
    x = 22,909.10

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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.