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Finding the Fourth Proportional to 7,676.90, 10,595.05 and 4,319.84

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Solution

The fourth proportional to 7,676.90, 10,595.05 and 4,319.84 is: 5,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.90 : 10,595.05 = 4,319.84 : x
  2. Step 2: Convert to fraction form
    7,676.90/10,595.05 = 4,319.84/x
  3. Step 3: Cross multiply
    7,676.90x = 10,595.05 × 4,319.84
  4. Step 4: Simplify right side
    7,676.90x = 45,768,920.79
  5. Step 5: Solve for x
    x = 45,768,920.79/7,676.90
  6. Step 6: Final answer
    x = 5,961.90

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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.