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Finding the Fourth Proportional to 5,295.28, 7,919.60 and 4,714.12

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Solution

The fourth proportional to 5,295.28, 7,919.60 and 4,714.12 is: 7,050.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.28 : 7,919.60 = 4,714.12 : x
  2. Step 2: Convert to fraction form
    5,295.28/7,919.60 = 4,714.12/x
  3. Step 3: Cross multiply
    5,295.28x = 7,919.60 × 4,714.12
  4. Step 4: Simplify right side
    5,295.28x = 37,333,944.75
  5. Step 5: Solve for x
    x = 37,333,944.75/5,295.28
  6. Step 6: Final answer
    x = 7,050.42

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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.