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Finding the Fourth Proportional to 13,066.46, 18,031.04 and 7,098.11

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Solution

The fourth proportional to 13,066.46, 18,031.04 and 7,098.11 is: 9,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.46 : 18,031.04 = 7,098.11 : x
  2. Step 2: Convert to fraction form
    13,066.46/18,031.04 = 7,098.11/x
  3. Step 3: Cross multiply
    13,066.46x = 18,031.04 × 7,098.11
  4. Step 4: Simplify right side
    13,066.46x = 127,986,375.35
  5. Step 5: Solve for x
    x = 127,986,375.35/13,066.46
  6. Step 6: Final answer
    x = 9,795.03

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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.