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Finding the Fourth Proportional to 8,676.65, 13,030.86 and 7,944.68

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Solution

The fourth proportional to 8,676.65, 13,030.86 and 7,944.68 is: 11,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.65 : 13,030.86 = 7,944.68 : x
  2. Step 2: Convert to fraction form
    8,676.65/13,030.86 = 7,944.68/x
  3. Step 3: Cross multiply
    8,676.65x = 13,030.86 × 7,944.68
  4. Step 4: Simplify right side
    8,676.65x = 103,526,045.40
  5. Step 5: Solve for x
    x = 103,526,045.40/8,676.65
  6. Step 6: Final answer
    x = 11,931.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.