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Finding the Fourth Proportional to 70,391.59, 105,586.48 and 17,084.02

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Solution

The fourth proportional to 70,391.59, 105,586.48 and 17,084.02 is: 25,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,391.59 : 105,586.48 = 17,084.02 : x
  2. Step 2: Convert to fraction form
    70,391.59/105,586.48 = 17,084.02/x
  3. Step 3: Cross multiply
    70,391.59x = 105,586.48 × 17,084.02
  4. Step 4: Simplify right side
    70,391.59x = 1,803,841,536.05
  5. Step 5: Solve for x
    x = 1,803,841,536.05/70,391.59
  6. Step 6: Final answer
    x = 25,625.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.