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Finding the Fourth Proportional to 4,676.16, 7,011.90 and 1,555.07

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Solution

The fourth proportional to 4,676.16, 7,011.90 and 1,555.07 is: 2,331.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,676.16 : 7,011.90 = 1,555.07 : x
  2. Step 2: Convert to fraction form
    4,676.16/7,011.90 = 1,555.07/x
  3. Step 3: Cross multiply
    4,676.16x = 7,011.90 × 1,555.07
  4. Step 4: Simplify right side
    4,676.16x = 10,903,999.72
  5. Step 5: Solve for x
    x = 10,903,999.72/4,676.16
  6. Step 6: Final answer
    x = 2,331.83

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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.