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Finding the Fourth Proportional to 57,887.92, 86,830.26 and 18,447.40

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Solution

The fourth proportional to 57,887.92, 86,830.26 and 18,447.40 is: 27,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887.92 : 86,830.26 = 18,447.40 : x
  2. Step 2: Convert to fraction form
    57,887.92/86,830.26 = 18,447.40/x
  3. Step 3: Cross multiply
    57,887.92x = 86,830.26 × 18,447.40
  4. Step 4: Simplify right side
    57,887.92x = 1,601,792,538.32
  5. Step 5: Solve for x
    x = 1,601,792,538.32/57,887.92
  6. Step 6: Final answer
    x = 27,670.58

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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.