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Finding the Fourth Proportional to 25,432.50, 35,096.85 and 15,496.50

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Solution

The fourth proportional to 25,432.50, 35,096.85 and 15,496.50 is: 21,385.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,432.50 : 35,096.85 = 15,496.50 : x
  2. Step 2: Convert to fraction form
    25,432.50/35,096.85 = 15,496.50/x
  3. Step 3: Cross multiply
    25,432.50x = 35,096.85 × 15,496.50
  4. Step 4: Simplify right side
    25,432.50x = 543,878,336.03
  5. Step 5: Solve for x
    x = 543,878,336.03/25,432.50
  6. Step 6: Final answer
    x = 21,385.17

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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.