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Finding the Fourth Proportional to 15,761.28, 23,636.88 and 7,436.28

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Solution

The fourth proportional to 15,761.28, 23,636.88 and 7,436.28 is: 11,152.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,761.28 : 23,636.88 = 7,436.28 : x
  2. Step 2: Convert to fraction form
    15,761.28/23,636.88 = 7,436.28/x
  3. Step 3: Cross multiply
    15,761.28x = 23,636.88 × 7,436.28
  4. Step 4: Simplify right side
    15,761.28x = 175,770,458.01
  5. Step 5: Solve for x
    x = 175,770,458.01/15,761.28
  6. Step 6: Final answer
    x = 11,152.04

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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.