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Finding the Fourth Proportional to 46,479.56, 69,720.16 and 18,777.56

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Solution

The fourth proportional to 46,479.56, 69,720.16 and 18,777.56 is: 28,166.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,479.56 : 69,720.16 = 18,777.56 : x
  2. Step 2: Convert to fraction form
    46,479.56/69,720.16 = 18,777.56/x
  3. Step 3: Cross multiply
    46,479.56x = 69,720.16 × 18,777.56
  4. Step 4: Simplify right side
    46,479.56x = 1,309,174,614.97
  5. Step 5: Solve for x
    x = 1,309,174,614.97/46,479.56
  6. Step 6: Final answer
    x = 28,166.67

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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.