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Finding the Fourth Proportional to 8,313.99, 11,472.86 and 4,728.47

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Solution

The fourth proportional to 8,313.99, 11,472.86 and 4,728.47 is: 6,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,313.99 : 11,472.86 = 4,728.47 : x
  2. Step 2: Convert to fraction form
    8,313.99/11,472.86 = 4,728.47/x
  3. Step 3: Cross multiply
    8,313.99x = 11,472.86 × 4,728.47
  4. Step 4: Simplify right side
    8,313.99x = 54,249,074.32
  5. Step 5: Solve for x
    x = 54,249,074.32/8,313.99
  6. Step 6: Final answer
    x = 6,525.03

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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.