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Finding the Fourth Proportional to 70,792.56, 97,696.08 and 38,962.80

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Solution

The fourth proportional to 70,792.56, 97,696.08 and 38,962.80 is: 53,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,792.56 : 97,696.08 = 38,962.80 : x
  2. Step 2: Convert to fraction form
    70,792.56/97,696.08 = 38,962.80/x
  3. Step 3: Cross multiply
    70,792.56x = 97,696.08 × 38,962.80
  4. Step 4: Simplify right side
    70,792.56x = 3,806,512,825.82
  5. Step 5: Solve for x
    x = 3,806,512,825.82/70,792.56
  6. Step 6: Final answer
    x = 53,769.96

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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.