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Finding the Fourth Proportional to 12,271.70, 18,426.02 and 7,363.31

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Solution

The fourth proportional to 12,271.70, 18,426.02 and 7,363.31 is: 11,056.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.70 : 18,426.02 = 7,363.31 : x
  2. Step 2: Convert to fraction form
    12,271.70/18,426.02 = 7,363.31/x
  3. Step 3: Cross multiply
    12,271.70x = 18,426.02 × 7,363.31
  4. Step 4: Simplify right side
    12,271.70x = 135,676,368.38
  5. Step 5: Solve for x
    x = 135,676,368.38/12,271.70
  6. Step 6: Final answer
    x = 11,056.03

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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.