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Finding the Fourth Proportional to 38,400.75, 57,601.53 and 10,698.75

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Solution

The fourth proportional to 38,400.75, 57,601.53 and 10,698.75 is: 16,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.75 : 57,601.53 = 10,698.75 : x
  2. Step 2: Convert to fraction form
    38,400.75/57,601.53 = 10,698.75/x
  3. Step 3: Cross multiply
    38,400.75x = 57,601.53 × 10,698.75
  4. Step 4: Simplify right side
    38,400.75x = 616,264,369.09
  5. Step 5: Solve for x
    x = 616,264,369.09/38,400.75
  6. Step 6: Final answer
    x = 16,048.24

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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.