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Finding the Fourth Proportional to 70,696.53, 97,561.26 and 38,865.96

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Solution

The fourth proportional to 70,696.53, 97,561.26 and 38,865.96 is: 53,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.53 : 97,561.26 = 38,865.96 : x
  2. Step 2: Convert to fraction form
    70,696.53/97,561.26 = 38,865.96/x
  3. Step 3: Cross multiply
    70,696.53x = 97,561.26 × 38,865.96
  4. Step 4: Simplify right side
    70,696.53x = 3,791,812,028.71
  5. Step 5: Solve for x
    x = 3,791,812,028.71/70,696.53
  6. Step 6: Final answer
    x = 53,635.05

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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.