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Finding the Fourth Proportional to 57,646.67, 86,472.66 and 17,662.79

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Solution

The fourth proportional to 57,646.67, 86,472.66 and 17,662.79 is: 26,495.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,646.67 : 86,472.66 = 17,662.79 : x
  2. Step 2: Convert to fraction form
    57,646.67/86,472.66 = 17,662.79/x
  3. Step 3: Cross multiply
    57,646.67x = 86,472.66 × 17,662.79
  4. Step 4: Simplify right side
    57,646.67x = 1,527,348,346.01
  5. Step 5: Solve for x
    x = 1,527,348,346.01/57,646.67
  6. Step 6: Final answer
    x = 26,495.00

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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.