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Finding the Fourth Proportional to 10,658.15, 14,709.12 and 5,879.03

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Solution

The fourth proportional to 10,658.15, 14,709.12 and 5,879.03 is: 8,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658.15 : 14,709.12 = 5,879.03 : x
  2. Step 2: Convert to fraction form
    10,658.15/14,709.12 = 5,879.03/x
  3. Step 3: Cross multiply
    10,658.15x = 14,709.12 × 5,879.03
  4. Step 4: Simplify right side
    10,658.15x = 86,475,284.21
  5. Step 5: Solve for x
    x = 86,475,284.21/10,658.15
  6. Step 6: Final answer
    x = 8,113.54

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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.