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Finding the Fourth Proportional to 13,082.01, 18,052.98 and 7,113.74

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Solution

The fourth proportional to 13,082.01, 18,052.98 and 7,113.74 is: 9,816.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.01 : 18,052.98 = 7,113.74 : x
  2. Step 2: Convert to fraction form
    13,082.01/18,052.98 = 7,113.74/x
  3. Step 3: Cross multiply
    13,082.01x = 18,052.98 × 7,113.74
  4. Step 4: Simplify right side
    13,082.01x = 128,424,115.68
  5. Step 5: Solve for x
    x = 128,424,115.68/13,082.01
  6. Step 6: Final answer
    x = 9,816.85

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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.