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Finding the Fourth Proportional to 25,663.88, 35,406.72 and 15,049.64

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Solution

The fourth proportional to 25,663.88, 35,406.72 and 15,049.64 is: 20,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,663.88 : 35,406.72 = 15,049.64 : x
  2. Step 2: Convert to fraction form
    25,663.88/35,406.72 = 15,049.64/x
  3. Step 3: Cross multiply
    25,663.88x = 35,406.72 × 15,049.64
  4. Step 4: Simplify right side
    25,663.88x = 532,858,389.58
  5. Step 5: Solve for x
    x = 532,858,389.58/25,663.88
  6. Step 6: Final answer
    x = 20,762.97

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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.