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Finding the Fourth Proportional to 60,866.28, 91,313.98 and 19,313.24

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Solution

The fourth proportional to 60,866.28, 91,313.98 and 19,313.24 is: 28,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,866.28 : 91,313.98 = 19,313.24 : x
  2. Step 2: Convert to fraction form
    60,866.28/91,313.98 = 19,313.24/x
  3. Step 3: Cross multiply
    60,866.28x = 91,313.98 × 19,313.24
  4. Step 4: Simplify right side
    60,866.28x = 1,763,568,811.10
  5. Step 5: Solve for x
    x = 1,763,568,811.10/60,866.28
  6. Step 6: Final answer
    x = 28,974.48

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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.