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Finding the Fourth Proportional to 38,332.40, 57,433.80 and 18,568.40

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Solution

The fourth proportional to 38,332.40, 57,433.80 and 18,568.40 is: 27,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,332.40 : 57,433.80 = 18,568.40 : x
  2. Step 2: Convert to fraction form
    38,332.40/57,433.80 = 18,568.40/x
  3. Step 3: Cross multiply
    38,332.40x = 57,433.80 × 18,568.40
  4. Step 4: Simplify right side
    38,332.40x = 1,066,453,771.92
  5. Step 5: Solve for x
    x = 1,066,453,771.92/38,332.40
  6. Step 6: Final answer
    x = 27,821.21

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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.