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Finding the Fourth Proportional to 40,391.65, 60,586.59 and 10,809.48

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Solution

The fourth proportional to 40,391.65, 60,586.59 and 10,809.48 is: 16,213.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,391.65 : 60,586.59 = 10,809.48 : x
  2. Step 2: Convert to fraction form
    40,391.65/60,586.59 = 10,809.48/x
  3. Step 3: Cross multiply
    40,391.65x = 60,586.59 × 10,809.48
  4. Step 4: Simplify right side
    40,391.65x = 654,909,532.87
  5. Step 5: Solve for x
    x = 654,909,532.87/40,391.65
  6. Step 6: Final answer
    x = 16,213.98

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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.