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Finding the Fourth Proportional to 25,346.72, 34,978.69 and 14,016.97

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Solution

The fourth proportional to 25,346.72, 34,978.69 and 14,016.97 is: 19,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,346.72 : 34,978.69 = 14,016.97 : x
  2. Step 2: Convert to fraction form
    25,346.72/34,978.69 = 14,016.97/x
  3. Step 3: Cross multiply
    25,346.72x = 34,978.69 × 14,016.97
  4. Step 4: Simplify right side
    25,346.72x = 490,295,403.13
  5. Step 5: Solve for x
    x = 490,295,403.13/25,346.72
  6. Step 6: Final answer
    x = 19,343.55

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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.