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Finding the Fourth Proportional to 8,073.64, 11,133.12 and 6,392.32

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Solution

The fourth proportional to 8,073.64, 11,133.12 and 6,392.32 is: 8,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.64 : 11,133.12 = 6,392.32 : x
  2. Step 2: Convert to fraction form
    8,073.64/11,133.12 = 6,392.32/x
  3. Step 3: Cross multiply
    8,073.64x = 11,133.12 × 6,392.32
  4. Step 4: Simplify right side
    8,073.64x = 71,166,465.64
  5. Step 5: Solve for x
    x = 71,166,465.64/8,073.64
  6. Step 6: Final answer
    x = 8,814.67

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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.