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Finding the Fourth Proportional to 13,444.66, 18,550.67 and 8,064.64

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Solution

The fourth proportional to 13,444.66, 18,550.67 and 8,064.64 is: 11,127.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.66 : 18,550.67 = 8,064.64 : x
  2. Step 2: Convert to fraction form
    13,444.66/18,550.67 = 8,064.64/x
  3. Step 3: Cross multiply
    13,444.66x = 18,550.67 × 8,064.64
  4. Step 4: Simplify right side
    13,444.66x = 149,604,458.17
  5. Step 5: Solve for x
    x = 149,604,458.17/13,444.66
  6. Step 6: Final answer
    x = 11,127.42

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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.