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Finding the Fourth Proportional to 29,112.01, 40,174.72 and 17,013.20

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Solution

The fourth proportional to 29,112.01, 40,174.72 and 17,013.20 is: 23,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,112.01 : 40,174.72 = 17,013.20 : x
  2. Step 2: Convert to fraction form
    29,112.01/40,174.72 = 17,013.20/x
  3. Step 3: Cross multiply
    29,112.01x = 40,174.72 × 17,013.20
  4. Step 4: Simplify right side
    29,112.01x = 683,500,302.90
  5. Step 5: Solve for x
    x = 683,500,302.90/29,112.01
  6. Step 6: Final answer
    x = 23,478.30

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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.