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Finding the Fourth Proportional to 66,582.99, 91,887.26 and 38,288.68

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Solution

The fourth proportional to 66,582.99, 91,887.26 and 38,288.68 is: 52,839.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,582.99 : 91,887.26 = 38,288.68 : x
  2. Step 2: Convert to fraction form
    66,582.99/91,887.26 = 38,288.68/x
  3. Step 3: Cross multiply
    66,582.99x = 91,887.26 × 38,288.68
  4. Step 4: Simplify right side
    66,582.99x = 3,518,241,473.06
  5. Step 5: Solve for x
    x = 3,518,241,473.06/66,582.99
  6. Step 6: Final answer
    x = 52,839.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.