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Finding the Fourth Proportional to 6,434.72, 8,875.92 and 4,668.32

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Solution

The fourth proportional to 6,434.72, 8,875.92 and 4,668.32 is: 6,439.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,434.72 : 8,875.92 = 4,668.32 : x
  2. Step 2: Convert to fraction form
    6,434.72/8,875.92 = 4,668.32/x
  3. Step 3: Cross multiply
    6,434.72x = 8,875.92 × 4,668.32
  4. Step 4: Simplify right side
    6,434.72x = 41,435,634.85
  5. Step 5: Solve for x
    x = 41,435,634.85/6,434.72
  6. Step 6: Final answer
    x = 6,439.38

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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.