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Finding the Fourth Proportional to 49,406.70, 68,135.19 and 45,737.10

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Solution

The fourth proportional to 49,406.70, 68,135.19 and 45,737.10 is: 63,074.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,406.70 : 68,135.19 = 45,737.10 : x
  2. Step 2: Convert to fraction form
    49,406.70/68,135.19 = 45,737.10/x
  3. Step 3: Cross multiply
    49,406.70x = 68,135.19 × 45,737.10
  4. Step 4: Simplify right side
    49,406.70x = 3,116,305,429.19
  5. Step 5: Solve for x
    x = 3,116,305,429.19/49,406.70
  6. Step 6: Final answer
    x = 63,074.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.