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Finding the Fourth Proportional to 12,322.76, 18,484.14 and 3,437.73

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Solution

The fourth proportional to 12,322.76, 18,484.14 and 3,437.73 is: 5,156.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.76 : 18,484.14 = 3,437.73 : x
  2. Step 2: Convert to fraction form
    12,322.76/18,484.14 = 3,437.73/x
  3. Step 3: Cross multiply
    12,322.76x = 18,484.14 × 3,437.73
  4. Step 4: Simplify right side
    12,322.76x = 63,543,390.18
  5. Step 5: Solve for x
    x = 63,543,390.18/12,322.76
  6. Step 6: Final answer
    x = 5,156.59

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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.