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Finding the Fourth Proportional to 4,609.64, 6,917.60 and 1,688.24

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Solution

The fourth proportional to 4,609.64, 6,917.60 and 1,688.24 is: 2,533.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,609.64 : 6,917.60 = 1,688.24 : x
  2. Step 2: Convert to fraction form
    4,609.64/6,917.60 = 1,688.24/x
  3. Step 3: Cross multiply
    4,609.64x = 6,917.60 × 1,688.24
  4. Step 4: Simplify right side
    4,609.64x = 11,678,590.54
  5. Step 5: Solve for x
    x = 11,678,590.54/4,609.64
  6. Step 6: Final answer
    x = 2,533.51

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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.