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Finding the Fourth Proportional to 49,248.96, 73,873.44 and 12,312.96

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Solution

The fourth proportional to 49,248.96, 73,873.44 and 12,312.96 is: 18,469.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,248.96 : 73,873.44 = 12,312.96 : x
  2. Step 2: Convert to fraction form
    49,248.96/73,873.44 = 12,312.96/x
  3. Step 3: Cross multiply
    49,248.96x = 73,873.44 × 12,312.96
  4. Step 4: Simplify right side
    49,248.96x = 909,600,711.78
  5. Step 5: Solve for x
    x = 909,600,711.78/49,248.96
  6. Step 6: Final answer
    x = 18,469.44

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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.