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Finding the Fourth Proportional to 57,469.72, 86,204.70 and 15,916.84

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Solution

The fourth proportional to 57,469.72, 86,204.70 and 15,916.84 is: 23,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,469.72 : 86,204.70 = 15,916.84 : x
  2. Step 2: Convert to fraction form
    57,469.72/86,204.70 = 15,916.84/x
  3. Step 3: Cross multiply
    57,469.72x = 86,204.70 × 15,916.84
  4. Step 4: Simplify right side
    57,469.72x = 1,372,106,417.15
  5. Step 5: Solve for x
    x = 1,372,106,417.15/57,469.72
  6. Step 6: Final answer
    x = 23,875.29

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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.