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Finding the Fourth Proportional to 6,898.43, 9,520.53 and 4,066.67

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Solution

The fourth proportional to 6,898.43, 9,520.53 and 4,066.67 is: 5,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898.43 : 9,520.53 = 4,066.67 : x
  2. Step 2: Convert to fraction form
    6,898.43/9,520.53 = 4,066.67/x
  3. Step 3: Cross multiply
    6,898.43x = 9,520.53 × 4,066.67
  4. Step 4: Simplify right side
    6,898.43x = 38,716,833.40
  5. Step 5: Solve for x
    x = 38,716,833.40/6,898.43
  6. Step 6: Final answer
    x = 5,612.42

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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.