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Finding the Fourth Proportional to 60,716.79, 91,085.72 and 18,595.88

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Solution

The fourth proportional to 60,716.79, 91,085.72 and 18,595.88 is: 27,897.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,716.79 : 91,085.72 = 18,595.88 : x
  2. Step 2: Convert to fraction form
    60,716.79/91,085.72 = 18,595.88/x
  3. Step 3: Cross multiply
    60,716.79x = 91,085.72 × 18,595.88
  4. Step 4: Simplify right side
    60,716.79x = 1,693,818,912.00
  5. Step 5: Solve for x
    x = 1,693,818,912.00/60,716.79
  6. Step 6: Final answer
    x = 27,897.04

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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.