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Finding the Fourth Proportional to 8,693.51, 11,980.49 and 8,533.58

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Solution

The fourth proportional to 8,693.51, 11,980.49 and 8,533.58 is: 11,760.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,693.51 : 11,980.49 = 8,533.58 : x
  2. Step 2: Convert to fraction form
    8,693.51/11,980.49 = 8,533.58/x
  3. Step 3: Cross multiply
    8,693.51x = 11,980.49 × 8,533.58
  4. Step 4: Simplify right side
    8,693.51x = 102,236,367.28
  5. Step 5: Solve for x
    x = 102,236,367.28/8,693.51
  6. Step 6: Final answer
    x = 11,760.09

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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.