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Finding the Fourth Proportional to 71,359.68, 98,361.59 and 48,382.06

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Solution

The fourth proportional to 71,359.68, 98,361.59 and 48,382.06 is: 66,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.68 : 98,361.59 = 48,382.06 : x
  2. Step 2: Convert to fraction form
    71,359.68/98,361.59 = 48,382.06/x
  3. Step 3: Cross multiply
    71,359.68x = 98,361.59 × 48,382.06
  4. Step 4: Simplify right side
    71,359.68x = 4,758,936,317.84
  5. Step 5: Solve for x
    x = 4,758,936,317.84/71,359.68
  6. Step 6: Final answer
    x = 66,689.43

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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.