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Finding the Fourth Proportional to 70,984.76, 97,954.52 and 39,153.58

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Solution

The fourth proportional to 70,984.76, 97,954.52 and 39,153.58 is: 54,029.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,984.76 : 97,954.52 = 39,153.58 : x
  2. Step 2: Convert to fraction form
    70,984.76/97,954.52 = 39,153.58/x
  3. Step 3: Cross multiply
    70,984.76x = 97,954.52 × 39,153.58
  4. Step 4: Simplify right side
    70,984.76x = 3,835,269,694.53
  5. Step 5: Solve for x
    x = 3,835,269,694.53/70,984.76
  6. Step 6: Final answer
    x = 54,029.48

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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.