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Finding the Fourth Proportional to 25,636.84, 35,379.30 and 15,034.12

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Solution

The fourth proportional to 25,636.84, 35,379.30 and 15,034.12 is: 20,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,636.84 : 35,379.30 = 15,034.12 : x
  2. Step 2: Convert to fraction form
    25,636.84/35,379.30 = 15,034.12/x
  3. Step 3: Cross multiply
    25,636.84x = 35,379.30 × 15,034.12
  4. Step 4: Simplify right side
    25,636.84x = 531,896,641.72
  5. Step 5: Solve for x
    x = 531,896,641.72/25,636.84
  6. Step 6: Final answer
    x = 20,747.36

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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.