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Finding the Fourth Proportional to 70,892.08, 97,829.80 and 39,063.92

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Solution

The fourth proportional to 70,892.08, 97,829.80 and 39,063.92 is: 53,907.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,892.08 : 97,829.80 = 39,063.92 : x
  2. Step 2: Convert to fraction form
    70,892.08/97,829.80 = 39,063.92/x
  3. Step 3: Cross multiply
    70,892.08x = 97,829.80 × 39,063.92
  4. Step 4: Simplify right side
    70,892.08x = 3,821,615,480.82
  5. Step 5: Solve for x
    x = 3,821,615,480.82/70,892.08
  6. Step 6: Final answer
    x = 53,907.51

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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.