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Finding the Fourth Proportional to 10,877.69, 15,008.69 and 6,339.67

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Solution

The fourth proportional to 10,877.69, 15,008.69 and 6,339.67 is: 8,747.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,877.69 : 15,008.69 = 6,339.67 : x
  2. Step 2: Convert to fraction form
    10,877.69/15,008.69 = 6,339.67/x
  3. Step 3: Cross multiply
    10,877.69x = 15,008.69 × 6,339.67
  4. Step 4: Simplify right side
    10,877.69x = 95,150,120.06
  5. Step 5: Solve for x
    x = 95,150,120.06/10,877.69
  6. Step 6: Final answer
    x = 8,747.27

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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.