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Finding the Fourth Proportional to 22,437.54, 30,966.03 and 13,485.42

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Solution

The fourth proportional to 22,437.54, 30,966.03 and 13,485.42 is: 18,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,437.54 : 30,966.03 = 13,485.42 : x
  2. Step 2: Convert to fraction form
    22,437.54/30,966.03 = 13,485.42/x
  3. Step 3: Cross multiply
    22,437.54x = 30,966.03 × 13,485.42
  4. Step 4: Simplify right side
    22,437.54x = 417,589,920.28
  5. Step 5: Solve for x
    x = 417,589,920.28/22,437.54
  6. Step 6: Final answer
    x = 18,611.22

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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.