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Finding the Fourth Proportional to 12,437.66, 18,656.49 and 8,530.22

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Solution

The fourth proportional to 12,437.66, 18,656.49 and 8,530.22 is: 12,795.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,437.66 : 18,656.49 = 8,530.22 : x
  2. Step 2: Convert to fraction form
    12,437.66/18,656.49 = 8,530.22/x
  3. Step 3: Cross multiply
    12,437.66x = 18,656.49 × 8,530.22
  4. Step 4: Simplify right side
    12,437.66x = 159,143,964.13
  5. Step 5: Solve for x
    x = 159,143,964.13/12,437.66
  6. Step 6: Final answer
    x = 12,795.33

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.