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Finding the Fourth Proportional to 8,646.76, 11,932.77 and 5,289.51

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Solution

The fourth proportional to 8,646.76, 11,932.77 and 5,289.51 is: 7,299.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.76 : 11,932.77 = 5,289.51 : x
  2. Step 2: Convert to fraction form
    8,646.76/11,932.77 = 5,289.51/x
  3. Step 3: Cross multiply
    8,646.76x = 11,932.77 × 5,289.51
  4. Step 4: Simplify right side
    8,646.76x = 63,118,506.24
  5. Step 5: Solve for x
    x = 63,118,506.24/8,646.76
  6. Step 6: Final answer
    x = 7,299.67

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Similar ratio
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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.