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Finding the Fourth Proportional to 13,082.84, 18,060 and 8,373.32

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Solution

The fourth proportional to 13,082.84, 18,060 and 8,373.32 is: 11,558.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.84 : 18,060 = 8,373.32 : x
  2. Step 2: Convert to fraction form
    13,082.84/18,060 = 8,373.32/x
  3. Step 3: Cross multiply
    13,082.84x = 18,060 × 8,373.32
  4. Step 4: Simplify right side
    13,082.84x = 151,222,159.20
  5. Step 5: Solve for x
    x = 151,222,159.20/13,082.84
  6. Step 6: Final answer
    x = 11,558.82

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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.