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Finding the Fourth Proportional to 70,913.62, 97,858.87 and 39,082.51

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Solution

The fourth proportional to 70,913.62, 97,858.87 and 39,082.51 is: 53,932.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,913.62 : 97,858.87 = 39,082.51 : x
  2. Step 2: Convert to fraction form
    70,913.62/97,858.87 = 39,082.51/x
  3. Step 3: Cross multiply
    70,913.62x = 97,858.87 × 39,082.51
  4. Step 4: Simplify right side
    70,913.62x = 3,824,570,265.36
  5. Step 5: Solve for x
    x = 3,824,570,265.36/70,913.62
  6. Step 6: Final answer
    x = 53,932.80

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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.