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Finding the Fourth Proportional to 60,977.68, 91,472.52 and 18,856.12

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Solution

The fourth proportional to 60,977.68, 91,472.52 and 18,856.12 is: 28,286.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,977.68 : 91,472.52 = 18,856.12 : x
  2. Step 2: Convert to fraction form
    60,977.68/91,472.52 = 18,856.12/x
  3. Step 3: Cross multiply
    60,977.68x = 91,472.52 × 18,856.12
  4. Step 4: Simplify right side
    60,977.68x = 1,724,816,813.82
  5. Step 5: Solve for x
    x = 1,724,816,813.82/60,977.68
  6. Step 6: Final answer
    x = 28,286.04

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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.