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Finding the Fourth Proportional to 48,381.72, 66,766.74 and 27,161.04

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Solution

The fourth proportional to 48,381.72, 66,766.74 and 27,161.04 is: 37,482.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,381.72 : 66,766.74 = 27,161.04 : x
  2. Step 2: Convert to fraction form
    48,381.72/66,766.74 = 27,161.04/x
  3. Step 3: Cross multiply
    48,381.72x = 66,766.74 × 27,161.04
  4. Step 4: Simplify right side
    48,381.72x = 1,813,454,095.81
  5. Step 5: Solve for x
    x = 1,813,454,095.81/48,381.72
  6. Step 6: Final answer
    x = 37,482.22

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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.