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Finding the Fourth Proportional to 85,957.51, 118,621.56 and 47,717.62

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Solution

The fourth proportional to 85,957.51, 118,621.56 and 47,717.62 is: 65,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,957.51 : 118,621.56 = 47,717.62 : x
  2. Step 2: Convert to fraction form
    85,957.51/118,621.56 = 47,717.62/x
  3. Step 3: Cross multiply
    85,957.51x = 118,621.56 × 47,717.62
  4. Step 4: Simplify right side
    85,957.51x = 5,660,338,523.89
  5. Step 5: Solve for x
    x = 5,660,338,523.89/85,957.51
  6. Step 6: Final answer
    x = 65,850.42

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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.