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Finding the Fourth Proportional to 56,978.73, 85,468.28 and 17,535.60

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Solution

The fourth proportional to 56,978.73, 85,468.28 and 17,535.60 is: 26,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,978.73 : 85,468.28 = 17,535.60 : x
  2. Step 2: Convert to fraction form
    56,978.73/85,468.28 = 17,535.60/x
  3. Step 3: Cross multiply
    56,978.73x = 85,468.28 × 17,535.60
  4. Step 4: Simplify right side
    56,978.73x = 1,498,737,483.09
  5. Step 5: Solve for x
    x = 1,498,737,483.09/56,978.73
  6. Step 6: Final answer
    x = 26,303.46

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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.