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Finding the Fourth Proportional to 8,476.69, 11,703.30 and 5,453.16

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Solution

The fourth proportional to 8,476.69, 11,703.30 and 5,453.16 is: 7,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.69 : 11,703.30 = 5,453.16 : x
  2. Step 2: Convert to fraction form
    8,476.69/11,703.30 = 5,453.16/x
  3. Step 3: Cross multiply
    8,476.69x = 11,703.30 × 5,453.16
  4. Step 4: Simplify right side
    8,476.69x = 63,819,967.43
  5. Step 5: Solve for x
    x = 63,819,967.43/8,476.69
  6. Step 6: Final answer
    x = 7,528.88

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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.