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Finding the Fourth Proportional to 70,858.29, 97,788.87 and 39,027.18

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Solution

The fourth proportional to 70,858.29, 97,788.87 and 39,027.18 is: 53,859.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,858.29 : 97,788.87 = 39,027.18 : x
  2. Step 2: Convert to fraction form
    70,858.29/97,788.87 = 39,027.18/x
  3. Step 3: Cross multiply
    70,858.29x = 97,788.87 × 39,027.18
  4. Step 4: Simplify right side
    70,858.29x = 3,816,423,831.49
  5. Step 5: Solve for x
    x = 3,816,423,831.49/70,858.29
  6. Step 6: Final answer
    x = 53,859.95

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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.