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Finding the Fourth Proportional to 70,914.62, 97,860.25 and 39,083.51

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Solution

The fourth proportional to 70,914.62, 97,860.25 and 39,083.51 is: 53,934.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,914.62 : 97,860.25 = 39,083.51 : x
  2. Step 2: Convert to fraction form
    70,914.62/97,860.25 = 39,083.51/x
  3. Step 3: Cross multiply
    70,914.62x = 97,860.25 × 39,083.51
  4. Step 4: Simplify right side
    70,914.62x = 3,824,722,059.48
  5. Step 5: Solve for x
    x = 3,824,722,059.48/70,914.62
  6. Step 6: Final answer
    x = 53,934.18

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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.