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Finding the Fourth Proportional to 46,602.85, 69,928.88 and 20,309.65

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Solution

The fourth proportional to 46,602.85, 69,928.88 and 20,309.65 is: 30,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,602.85 : 69,928.88 = 20,309.65 : x
  2. Step 2: Convert to fraction form
    46,602.85/69,928.88 = 20,309.65/x
  3. Step 3: Cross multiply
    46,602.85x = 69,928.88 × 20,309.65
  4. Step 4: Simplify right side
    46,602.85x = 1,420,231,077.69
  5. Step 5: Solve for x
    x = 1,420,231,077.69/46,602.85
  6. Step 6: Final answer
    x = 30,475.20

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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.