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Finding the Fourth Proportional to 39,222.92, 58,834.56 and 9,640.76

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Solution

The fourth proportional to 39,222.92, 58,834.56 and 9,640.76 is: 14,461.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,222.92 : 58,834.56 = 9,640.76 : x
  2. Step 2: Convert to fraction form
    39,222.92/58,834.56 = 9,640.76/x
  3. Step 3: Cross multiply
    39,222.92x = 58,834.56 × 9,640.76
  4. Step 4: Simplify right side
    39,222.92x = 567,209,872.67
  5. Step 5: Solve for x
    x = 567,209,872.67/39,222.92
  6. Step 6: Final answer
    x = 14,461.18

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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.