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Finding the Fourth Proportional to 25,491.32, 38,235.98 and 8,855.14

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Solution

The fourth proportional to 25,491.32, 38,235.98 and 8,855.14 is: 13,282.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,491.32 : 38,235.98 = 8,855.14 : x
  2. Step 2: Convert to fraction form
    25,491.32/38,235.98 = 8,855.14/x
  3. Step 3: Cross multiply
    25,491.32x = 38,235.98 × 8,855.14
  4. Step 4: Simplify right side
    25,491.32x = 338,584,955.94
  5. Step 5: Solve for x
    x = 338,584,955.94/25,491.32
  6. Step 6: Final answer
    x = 13,282.36

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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.