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Finding the Fourth Proportional to 8,556.30, 12,834.45 and 5,931.90

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Solution

The fourth proportional to 8,556.30, 12,834.45 and 5,931.90 is: 8,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.30 : 12,834.45 = 5,931.90 : x
  2. Step 2: Convert to fraction form
    8,556.30/12,834.45 = 5,931.90/x
  3. Step 3: Cross multiply
    8,556.30x = 12,834.45 × 5,931.90
  4. Step 4: Simplify right side
    8,556.30x = 76,132,673.96
  5. Step 5: Solve for x
    x = 76,132,673.96/8,556.30
  6. Step 6: Final answer
    x = 8,897.85

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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.