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Finding the Fourth Proportional to 46,563.40, 69,845.10 and 18,861.40

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Solution

The fourth proportional to 46,563.40, 69,845.10 and 18,861.40 is: 28,292.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,563.40 : 69,845.10 = 18,861.40 : x
  2. Step 2: Convert to fraction form
    46,563.40/69,845.10 = 18,861.40/x
  3. Step 3: Cross multiply
    46,563.40x = 69,845.10 × 18,861.40
  4. Step 4: Simplify right side
    46,563.40x = 1,317,376,369.14
  5. Step 5: Solve for x
    x = 1,317,376,369.14/46,563.40
  6. Step 6: Final answer
    x = 28,292.10

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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.