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Finding the Fourth Proportional to 14,993.16, 20,681.34 and 12,016.11

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Solution

The fourth proportional to 14,993.16, 20,681.34 and 12,016.11 is: 16,574.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.16 : 20,681.34 = 12,016.11 : x
  2. Step 2: Convert to fraction form
    14,993.16/20,681.34 = 12,016.11/x
  3. Step 3: Cross multiply
    14,993.16x = 20,681.34 × 12,016.11
  4. Step 4: Simplify right side
    14,993.16x = 248,509,144.60
  5. Step 5: Solve for x
    x = 248,509,144.60/14,993.16
  6. Step 6: Final answer
    x = 16,574.83

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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.