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Finding the Fourth Proportional to 25,405.98, 38,102.81 and 10,606.88

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Solution

The fourth proportional to 25,405.98, 38,102.81 and 10,606.88 is: 15,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,405.98 : 38,102.81 = 10,606.88 : x
  2. Step 2: Convert to fraction form
    25,405.98/38,102.81 = 10,606.88/x
  3. Step 3: Cross multiply
    25,405.98x = 38,102.81 × 10,606.88
  4. Step 4: Simplify right side
    25,405.98x = 404,151,689.78
  5. Step 5: Solve for x
    x = 404,151,689.78/25,405.98
  6. Step 6: Final answer
    x = 15,907.74

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1.5x scale

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.