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Finding the Fourth Proportional to 60,769.08, 91,156.32 and 18,646.08

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Solution

The fourth proportional to 60,769.08, 91,156.32 and 18,646.08 is: 27,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,769.08 : 91,156.32 = 18,646.08 : x
  2. Step 2: Convert to fraction form
    60,769.08/91,156.32 = 18,646.08/x
  3. Step 3: Cross multiply
    60,769.08x = 91,156.32 × 18,646.08
  4. Step 4: Simplify right side
    60,769.08x = 1,699,708,035.23
  5. Step 5: Solve for x
    x = 1,699,708,035.23/60,769.08
  6. Step 6: Final answer
    x = 27,969.95

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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.