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Finding the Fourth Proportional to 23,687.64, 32,678.64 and 15,174.54

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Solution

The fourth proportional to 23,687.64, 32,678.64 and 15,174.54 is: 20,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,687.64 : 32,678.64 = 15,174.54 : x
  2. Step 2: Convert to fraction form
    23,687.64/32,678.64 = 15,174.54/x
  3. Step 3: Cross multiply
    23,687.64x = 32,678.64 × 15,174.54
  4. Step 4: Simplify right side
    23,687.64x = 495,883,329.83
  5. Step 5: Solve for x
    x = 495,883,329.83/23,687.64
  6. Step 6: Final answer
    x = 20,934.26

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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.