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Finding the Fourth Proportional to 49,885.48, 68,843.57 and 28,374.67

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Solution

The fourth proportional to 49,885.48, 68,843.57 and 28,374.67 is: 39,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,885.48 : 68,843.57 = 28,374.67 : x
  2. Step 2: Convert to fraction form
    49,885.48/68,843.57 = 28,374.67/x
  3. Step 3: Cross multiply
    49,885.48x = 68,843.57 × 28,374.67
  4. Step 4: Simplify right side
    49,885.48x = 1,953,413,828.51
  5. Step 5: Solve for x
    x = 1,953,413,828.51/49,885.48
  6. Step 6: Final answer
    x = 39,157.96

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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.