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Finding the Fourth Proportional to 15,092.76, 20,847.96 and 12,583.08

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Solution

The fourth proportional to 15,092.76, 20,847.96 and 12,583.08 is: 17,381.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,092.76 : 20,847.96 = 12,583.08 : x
  2. Step 2: Convert to fraction form
    15,092.76/20,847.96 = 12,583.08/x
  3. Step 3: Cross multiply
    15,092.76x = 20,847.96 × 12,583.08
  4. Step 4: Simplify right side
    15,092.76x = 262,331,548.52
  5. Step 5: Solve for x
    x = 262,331,548.52/15,092.76
  6. Step 6: Final answer
    x = 17,381.28

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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.