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Finding the Fourth Proportional to 13,082.35, 18,052.35 and 7,415.98

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Solution

The fourth proportional to 13,082.35, 18,052.35 and 7,415.98 is: 10,233.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,082.35 : 18,052.35 = 7,415.98 : x
  2. Step 2: Convert to fraction form
    13,082.35/18,052.35 = 7,415.98/x
  3. Step 3: Cross multiply
    13,082.35x = 18,052.35 × 7,415.98
  4. Step 4: Simplify right side
    13,082.35x = 133,875,866.55
  5. Step 5: Solve for x
    x = 133,875,866.55/13,082.35
  6. Step 6: Final answer
    x = 10,233.32

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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.