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Finding the Fourth Proportional to 49,653.80, 74,480.70 and 18,482.60

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Solution

The fourth proportional to 49,653.80, 74,480.70 and 18,482.60 is: 27,723.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,653.80 : 74,480.70 = 18,482.60 : x
  2. Step 2: Convert to fraction form
    49,653.80/74,480.70 = 18,482.60/x
  3. Step 3: Cross multiply
    49,653.80x = 74,480.70 × 18,482.60
  4. Step 4: Simplify right side
    49,653.80x = 1,376,596,985.82
  5. Step 5: Solve for x
    x = 1,376,596,985.82/49,653.80
  6. Step 6: Final answer
    x = 27,723.90

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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.