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Finding the Fourth Proportional to 57,887.91, 86,830.89 and 18,444.48

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Solution

The fourth proportional to 57,887.91, 86,830.89 and 18,444.48 is: 27,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887.91 : 86,830.89 = 18,444.48 : x
  2. Step 2: Convert to fraction form
    57,887.91/86,830.89 = 18,444.48/x
  3. Step 3: Cross multiply
    57,887.91x = 86,830.89 × 18,444.48
  4. Step 4: Simplify right side
    57,887.91x = 1,601,550,613.99
  5. Step 5: Solve for x
    x = 1,601,550,613.99/57,887.91
  6. Step 6: Final answer
    x = 27,666.41

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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.