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Finding the Fourth Proportional to 12,250.60, 18,354.30 and 10,047.40

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Solution

The fourth proportional to 12,250.60, 18,354.30 and 10,047.40 is: 15,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.60 : 18,354.30 = 10,047.40 : x
  2. Step 2: Convert to fraction form
    12,250.60/18,354.30 = 10,047.40/x
  3. Step 3: Cross multiply
    12,250.60x = 18,354.30 × 10,047.40
  4. Step 4: Simplify right side
    12,250.60x = 184,412,993.82
  5. Step 5: Solve for x
    x = 184,412,993.82/12,250.60
  6. Step 6: Final answer
    x = 15,053.38

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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.