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Finding the Fourth Proportional to 41,638.48, 62,428.48 and 15,339.76

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Solution

The fourth proportional to 41,638.48, 62,428.48 and 15,339.76 is: 22,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,638.48 : 62,428.48 = 15,339.76 : x
  2. Step 2: Convert to fraction form
    41,638.48/62,428.48 = 15,339.76/x
  3. Step 3: Cross multiply
    41,638.48x = 62,428.48 × 15,339.76
  4. Step 4: Simplify right side
    41,638.48x = 957,637,900.36
  5. Step 5: Solve for x
    x = 957,637,900.36/41,638.48
  6. Step 6: Final answer
    x = 22,998.87

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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.