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Finding the Fourth Proportional to 6,462.72, 8,921.52 and 5,296.32

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Solution

The fourth proportional to 6,462.72, 8,921.52 and 5,296.32 is: 7,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,462.72 : 8,921.52 = 5,296.32 : x
  2. Step 2: Convert to fraction form
    6,462.72/8,921.52 = 5,296.32/x
  3. Step 3: Cross multiply
    6,462.72x = 8,921.52 × 5,296.32
  4. Step 4: Simplify right side
    6,462.72x = 47,251,224.81
  5. Step 5: Solve for x
    x = 47,251,224.81/6,462.72
  6. Step 6: Final answer
    x = 7,311.35

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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.