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Finding the Fourth Proportional to 7,354.85, 10,148.04 and 4,167.86

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Solution

The fourth proportional to 7,354.85, 10,148.04 and 4,167.86 is: 5,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.85 : 10,148.04 = 4,167.86 : x
  2. Step 2: Convert to fraction form
    7,354.85/10,148.04 = 4,167.86/x
  3. Step 3: Cross multiply
    7,354.85x = 10,148.04 × 4,167.86
  4. Step 4: Simplify right side
    7,354.85x = 42,295,559.25
  5. Step 5: Solve for x
    x = 42,295,559.25/7,354.85
  6. Step 6: Final answer
    x = 5,750.71

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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.