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Finding the Fourth Proportional to 38,286.48, 57,210.08 and 29,230.48

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Solution

The fourth proportional to 38,286.48, 57,210.08 and 29,230.48 is: 43,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.48 : 57,210.08 = 29,230.48 : x
  2. Step 2: Convert to fraction form
    38,286.48/57,210.08 = 29,230.48/x
  3. Step 3: Cross multiply
    38,286.48x = 57,210.08 × 29,230.48
  4. Step 4: Simplify right side
    38,286.48x = 1,672,277,953.09
  5. Step 5: Solve for x
    x = 1,672,277,953.09/38,286.48
  6. Step 6: Final answer
    x = 43,678.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.