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Finding the Fourth Proportional to 46,000.60, 69,000.90 and 45,563.20

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Solution

The fourth proportional to 46,000.60, 69,000.90 and 45,563.20 is: 68,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,000.60 : 69,000.90 = 45,563.20 : x
  2. Step 2: Convert to fraction form
    46,000.60/69,000.90 = 45,563.20/x
  3. Step 3: Cross multiply
    46,000.60x = 69,000.90 × 45,563.20
  4. Step 4: Simplify right side
    46,000.60x = 3,143,901,806.88
  5. Step 5: Solve for x
    x = 3,143,901,806.88/46,000.60
  6. Step 6: Final answer
    x = 68,344.80

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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.