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Finding the Fourth Proportional to 12,474.80, 18,705.08 and 10,014.16

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Solution

The fourth proportional to 12,474.80, 18,705.08 and 10,014.16 is: 15,015.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.80 : 18,705.08 = 10,014.16 : x
  2. Step 2: Convert to fraction form
    12,474.80/18,705.08 = 10,014.16/x
  3. Step 3: Cross multiply
    12,474.80x = 18,705.08 × 10,014.16
  4. Step 4: Simplify right side
    12,474.80x = 187,315,663.93
  5. Step 5: Solve for x
    x = 187,315,663.93/12,474.80
  6. Step 6: Final answer
    x = 15,015.52

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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.