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Finding the Fourth Proportional to 49,653.70, 74,480.55 and 20,056.30

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Solution

The fourth proportional to 49,653.70, 74,480.55 and 20,056.30 is: 30,084.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,653.70 : 74,480.55 = 20,056.30 : x
  2. Step 2: Convert to fraction form
    49,653.70/74,480.55 = 20,056.30/x
  3. Step 3: Cross multiply
    49,653.70x = 74,480.55 × 20,056.30
  4. Step 4: Simplify right side
    49,653.70x = 1,493,804,254.97
  5. Step 5: Solve for x
    x = 1,493,804,254.97/49,653.70
  6. Step 6: Final answer
    x = 30,084.45

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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.