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Finding the Fourth Proportional to 8,485.04, 11,709.32 and 5,173.04

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Solution

The fourth proportional to 8,485.04, 11,709.32 and 5,173.04 is: 7,138.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.04 : 11,709.32 = 5,173.04 : x
  2. Step 2: Convert to fraction form
    8,485.04/11,709.32 = 5,173.04/x
  3. Step 3: Cross multiply
    8,485.04x = 11,709.32 × 5,173.04
  4. Step 4: Simplify right side
    8,485.04x = 60,572,780.73
  5. Step 5: Solve for x
    x = 60,572,780.73/8,485.04
  6. Step 6: Final answer
    x = 7,138.77

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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.