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Finding the Fourth Proportional to 29,560.78, 40,792.24 and 16,812.19

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Solution

The fourth proportional to 29,560.78, 40,792.24 and 16,812.19 is: 23,199.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,560.78 : 40,792.24 = 16,812.19 : x
  2. Step 2: Convert to fraction form
    29,560.78/40,792.24 = 16,812.19/x
  3. Step 3: Cross multiply
    29,560.78x = 40,792.24 × 16,812.19
  4. Step 4: Simplify right side
    29,560.78x = 685,806,889.41
  5. Step 5: Solve for x
    x = 685,806,889.41/29,560.78
  6. Step 6: Final answer
    x = 23,199.89

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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.