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Finding the Fourth Proportional to 9,053.63, 12,489.42 and 6,691.67

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Solution

The fourth proportional to 9,053.63, 12,489.42 and 6,691.67 is: 9,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,053.63 : 12,489.42 = 6,691.67 : x
  2. Step 2: Convert to fraction form
    9,053.63/12,489.42 = 6,691.67/x
  3. Step 3: Cross multiply
    9,053.63x = 12,489.42 × 6,691.67
  4. Step 4: Simplify right side
    9,053.63x = 83,575,014.68
  5. Step 5: Solve for x
    x = 83,575,014.68/9,053.63
  6. Step 6: Final answer
    x = 9,231.11

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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.