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Finding the Fourth Proportional to 12,033.15, 18,014.54 and 7,020.20

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Solution

The fourth proportional to 12,033.15, 18,014.54 and 7,020.20 is: 10,509.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,033.15 : 18,014.54 = 7,020.20 : x
  2. Step 2: Convert to fraction form
    12,033.15/18,014.54 = 7,020.20/x
  3. Step 3: Cross multiply
    12,033.15x = 18,014.54 × 7,020.20
  4. Step 4: Simplify right side
    12,033.15x = 126,465,673.71
  5. Step 5: Solve for x
    x = 126,465,673.71/12,033.15
  6. Step 6: Final answer
    x = 10,509.77

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Half scale
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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.