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Finding the Fourth Proportional to 12,030.86, 18,046.08 and 5,014.64

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Solution

The fourth proportional to 12,030.86, 18,046.08 and 5,014.64 is: 7,521.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.86 : 18,046.08 = 5,014.64 : x
  2. Step 2: Convert to fraction form
    12,030.86/18,046.08 = 5,014.64/x
  3. Step 3: Cross multiply
    12,030.86x = 18,046.08 × 5,014.64
  4. Step 4: Simplify right side
    12,030.86x = 90,494,504.38
  5. Step 5: Solve for x
    x = 90,494,504.38/12,030.86
  6. Step 6: Final answer
    x = 7,521.87

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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.