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Finding the Fourth Proportional to 13,359.16, 18,437.03 and 7,694.11

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Solution

The fourth proportional to 13,359.16, 18,437.03 and 7,694.11 is: 10,618.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.16 : 18,437.03 = 7,694.11 : x
  2. Step 2: Convert to fraction form
    13,359.16/18,437.03 = 7,694.11/x
  3. Step 3: Cross multiply
    13,359.16x = 18,437.03 × 7,694.11
  4. Step 4: Simplify right side
    13,359.16x = 141,856,536.89
  5. Step 5: Solve for x
    x = 141,856,536.89/13,359.16
  6. Step 6: Final answer
    x = 10,618.67

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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.