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Finding the Fourth Proportional to 9,274.64, 12,798.98 and 5,082.90

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Solution

The fourth proportional to 9,274.64, 12,798.98 and 5,082.90 is: 7,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,274.64 : 12,798.98 = 5,082.90 : x
  2. Step 2: Convert to fraction form
    9,274.64/12,798.98 = 5,082.90/x
  3. Step 3: Cross multiply
    9,274.64x = 12,798.98 × 5,082.90
  4. Step 4: Simplify right side
    9,274.64x = 65,055,935.44
  5. Step 5: Solve for x
    x = 65,055,935.44/9,274.64
  6. Step 6: Final answer
    x = 7,014.39

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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.