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Finding the Fourth Proportional to 49,737.94, 74,611 and 21,658.92

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Solution

The fourth proportional to 49,737.94, 74,611 and 21,658.92 is: 32,490.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,737.94 : 74,611 = 21,658.92 : x
  2. Step 2: Convert to fraction form
    49,737.94/74,611 = 21,658.92/x
  3. Step 3: Cross multiply
    49,737.94x = 74,611 × 21,658.92
  4. Step 4: Simplify right side
    49,737.94x = 1,615,993,680.12
  5. Step 5: Solve for x
    x = 1,615,993,680.12/49,737.94
  6. Step 6: Final answer
    x = 32,490.16

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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.