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Finding the Fourth Proportional to 56,294.48, 84,442.74 and 18,847.56

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Solution

The fourth proportional to 56,294.48, 84,442.74 and 18,847.56 is: 28,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,294.48 : 84,442.74 = 18,847.56 : x
  2. Step 2: Convert to fraction form
    56,294.48/84,442.74 = 18,847.56/x
  3. Step 3: Cross multiply
    56,294.48x = 84,442.74 × 18,847.56
  4. Step 4: Simplify right side
    56,294.48x = 1,591,539,608.71
  5. Step 5: Solve for x
    x = 1,591,539,608.71/56,294.48
  6. Step 6: Final answer
    x = 28,271.68

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1.5x scale

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.