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Finding the Fourth Proportional to 70,696.80, 97,553.57 and 38,863.80

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Solution

The fourth proportional to 70,696.80, 97,553.57 and 38,863.80 is: 53,627.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.80 : 97,553.57 = 38,863.80 : x
  2. Step 2: Convert to fraction form
    70,696.80/97,553.57 = 38,863.80/x
  3. Step 3: Cross multiply
    70,696.80x = 97,553.57 × 38,863.80
  4. Step 4: Simplify right side
    70,696.80x = 3,791,302,239.45
  5. Step 5: Solve for x
    x = 3,791,302,239.45/70,696.80
  6. Step 6: Final answer
    x = 53,627.64

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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.