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Finding the Fourth Proportional to 29,164.48, 40,247.04 and 15,916.48

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Solution

The fourth proportional to 29,164.48, 40,247.04 and 15,916.48 is: 21,964.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,164.48 : 40,247.04 = 15,916.48 : x
  2. Step 2: Convert to fraction form
    29,164.48/40,247.04 = 15,916.48/x
  3. Step 3: Cross multiply
    29,164.48x = 40,247.04 × 15,916.48
  4. Step 4: Simplify right side
    29,164.48x = 640,591,207.22
  5. Step 5: Solve for x
    x = 640,591,207.22/29,164.48
  6. Step 6: Final answer
    x = 21,964.77

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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.